44251664 has 20 divisors (see below), whose sum is σ = 86222160. Its totient is φ = 22000800.

The previous prime is 44251643. The next prime is 44251681. The reversal of 44251664 is 46615244.

It is a self number, because there is not a number n which added to its sum of digits gives 44251664.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4862 + ... + 10589.

It is an arithmetic number, because the mean of its divisors is an integer number (4311108).

Almost surely, 2^44251664 is an apocalyptic number.

It is an amenable number.

44251664 is a deficient number, since it is larger than the sum of its proper divisors (41970496).

44251664 is a wasteful number, since it uses less digits than its factorization.

44251664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15638 (or 15632 counting only the distinct ones).

The product of its digits is 23040, while the sum is 32.

The square root of 44251664 is about 6652.1924205483. The cubic root of 44251664 is about 353.7066313001.

The spelling of 44251664 in words is "forty-four million, two hundred fifty-one thousand, six hundred sixty-four".