45409656 has 32 divisors (see below), whose sum is σ = 116594640. Its totient is φ = 14727168.

The previous prime is 45409643. The next prime is 45409667. The reversal of 45409656 is 65690454.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24681 + ... + 26456.

Almost surely, 2^45409656 is an apocalyptic number.

It is an amenable number.

45409656 is an abundant number, since it is smaller than the sum of its proper divisors (71184984).

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

45409656 is a wasteful number, since it uses less digits than its factorization.

45409656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51183 (or 51179 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 45409656 is about 6738.6687112515. The cubic root of 45409656 is about 356.7654070037.

It can be divided in two parts, 4540 and 9656, that added together give a triangular number (14196 = T₁₆₈).

The spelling of 45409656 in words is "forty-five million, four hundred nine thousand, six hundred fifty-six".