45639464 has 24 divisors (see below), whose sum is σ = 92665710. Its totient is φ = 21063744.

The previous prime is 45639449. The next prime is 45639479. The reversal of 45639464 is 46493654.

It is an interprime number because it is at equal distance from previous prime (45639449) and next prime (45639479).

It can be written as a sum of positive squares in 3 ways, for example, as 25908100 + 19731364 = 5090^2 + 4442^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15527 + ... + 18230.

Almost surely, 2^45639464 is an apocalyptic number.

It is an amenable number.

45639464 is an abundant number, since it is smaller than the sum of its proper divisors (47026246).

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

45639464 is a wasteful number, since it uses less digits than its factorization.

45639464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33789 (or 33772 counting only the distinct ones).

The product of its digits is 311040, while the sum is 41.

The square root of 45639464 is about 6755.6986315258. The cubic root of 45639464 is about 357.3662309444.

The spelling of 45639464 in words is "forty-five million, six hundred thirty-nine thousand, four hundred sixty-four".