45657240 has 64 divisors (see below), whose sum is σ = 145035360. Its totient is φ = 11458560.

The previous prime is 45657233. The next prime is 45657263. The reversal of 45657240 is 4275654.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9151 + ... + 13230.

Almost surely, 2^45657240 is an apocalyptic number.

45657240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45657240 is an abundant number, since it is smaller than the sum of its proper divisors (99378120).

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

45657240 is a wasteful number, since it uses less digits than its factorization.

45657240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22412 (or 22408 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 33.

The square root of 45657240 is about 6757.0141334764. The cubic root of 45657240 is about 357.4126214801.

The spelling of 45657240 in words is "forty-five million, six hundred fifty-seven thousand, two hundred forty".