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2474780 = 2257111607
BaseRepresentation
bin1001011100001100011100
311122201202112
421130030130
51113143110
6125013152
730015050
oct11341434
94581675
102474780
111440380
129b41b8
13688589
14485c60
1533d405
hex25c31c

2474780 has 48 divisors (see below), whose sum is σ = 6483456. Its totient is φ = 770880.

The previous prime is 2474749. The next prime is 2474783. The reversal of 2474780 is 874742.

It is a super-2 number, since 2×24747802 = 12249072096800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2474783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 737 + ... + 2343.

It is an arithmetic number, because the mean of its divisors is an integer number (135072).

22474780 is an apocalyptic number.

2474780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2474780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3241728).

2474780 is an abundant number, since it is smaller than the sum of its proper divisors (4008676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2474780 is a wasteful number, since it uses less digits than its factorization.

2474780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634 (or 1632 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 2474780 is about 1573.1433501115. The cubic root of 2474780 is about 135.2629534210.

The spelling of 2474780 in words is "two million, four hundred seventy-four thousand, seven hundred eighty".

Divisors: 1 2 4 5 7 10 11 14 20 22 28 35 44 55 70 77 110 140 154 220 308 385 770 1540 1607 3214 6428 8035 11249 16070 17677 22498 32140 35354 44996 56245 70708 88385 112490 123739 176770 224980 247478 353540 494956 618695 1237390 2474780