Search a number
-
+
3408740 = 225414157
BaseRepresentation
bin1101000000001101100100
320102011220122
431000031210
51333034430
6201021112
740655006
oct15001544
96364818
103408740
111a19045
121184798
1392470a
1464a376
15474ee5
hex340364

3408740 has 24 divisors (see below), whose sum is σ = 7334712. Its totient is φ = 1329920.

The previous prime is 3408737. The next prime is 3408749. The reversal of 3408740 is 478043.

It can be written as a sum of positive squares in 4 ways, for example, as 1024 + 3407716 = 32^2 + 1846^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3408749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1259 + ... + 2898.

It is an arithmetic number, because the mean of its divisors is an integer number (305613).

Almost surely, 23408740 is an apocalyptic number.

It is an amenable number.

3408740 is an abundant number, since it is smaller than the sum of its proper divisors (3925972).

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

3408740 is a wasteful number, since it uses less digits than its factorization.

3408740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4207 (or 4205 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 3408740 is about 1846.2773356135. The cubic root of 3408740 is about 150.4981953625.

The spelling of 3408740 in words is "three million, four hundred eight thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 41 82 164 205 410 820 4157 8314 16628 20785 41570 83140 170437 340874 681748 852185 1704370 3408740