45149644 has 24 divisors (see below), whose sum is σ = 82706400. Its totient is φ = 21525504.

The previous prime is 45149639. The next prime is 45149647. The reversal of 45149644 is 44694154.

45149644 is nontrivially palindromic in base 5.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (45149647) 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, 40762 + ... + 41854.

It is an arithmetic number, because the mean of its divisors is an integer number (3446100).

Almost surely, 2^45149644 is an apocalyptic number.

45149644 is the 3592-nd nonagonal number.

It is an amenable number.

45149644 is a deficient number, since it is larger than the sum of its proper divisors (37556756).

45149644 is a wasteful number, since it uses less digits than its factorization.

45149644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1569 (or 1567 counting only the distinct ones).

The product of its digits is 69120, while the sum is 37.

The square root of 45149644 is about 6719.3484803216. The cubic root of 45149644 is about 356.0831666151.

The spelling of 45149644 in words is "forty-five million, one hundred forty-nine thousand, six hundred forty-four".