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2240340 = 223537339
BaseRepresentation
bin1000100010111101010100
311012211011120
420202331110
51033142330
6120003540
725020414
oct10427524
94184146
102240340
1112a0223
129005b0
1360595b
14424644
152e3c10
hex222f54

2240340 has 24 divisors (see below), whose sum is σ = 6273120. Its totient is φ = 597408.

The previous prime is 2240323. The next prime is 2240341. The reversal of 2240340 is 430422.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240341) 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, 18610 + ... + 18729.

It is an arithmetic number, because the mean of its divisors is an integer number (261380).

22240340 is an apocalyptic number.

2240340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2240340 is an abundant number, since it is smaller than the sum of its proper divisors (4032780).

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

2240340 is a wasteful number, since it uses less digits than its factorization.

2240340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37351 (or 37349 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 2240340 is about 1496.7765364275. The cubic root of 2240340 is about 130.8492720878.

Adding to 2240340 its reverse (430422), we get a palindrome (2670762).

The spelling of 2240340 in words is "two million, two hundred forty thousand, three hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 37339 74678 112017 149356 186695 224034 373390 448068 560085 746780 1120170 2240340