45647538 has 16 divisors (see below), whose sum is σ = 96100320. Its totient is φ = 14414976.

The previous prime is 45647527. The next prime is 45647561. The reversal of 45647538 is 83574654.

It is a super-2 number, since 2×45647538² = 4167395450922888, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45647538.

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, 200095 + ... + 200322.

It is an arithmetic number, because the mean of its divisors is an integer number (6006270).

Almost surely, 2^45647538 is an apocalyptic number.

45647538 is an abundant number, since it is smaller than the sum of its proper divisors (50452782).

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

45647538 is a wasteful number, since it uses less digits than its factorization.

45647538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400441.

The product of its digits is 403200, while the sum is 42.

The square root of 45647538 is about 6756.2961746803. The cubic root of 45647538 is about 357.3873033860.

The spelling of 45647538 in words is "forty-five million, six hundred forty-seven thousand, five hundred thirty-eight".