44663664 has 40 divisors (see below), whose sum is σ = 116278272. Its totient is φ = 14772160.

The previous prime is 44663659. The next prime is 44663681. The reversal of 44663664 is 46636644.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2737 + ... + 9839.

Almost surely, 2^44663664 is an apocalyptic number.

It is an amenable number.

44663664 is an abundant number, since it is smaller than the sum of its proper divisors (71614608).

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

44663664 is a wasteful number, since it uses less digits than its factorization.

44663664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7245 (or 7239 counting only the distinct ones).

The product of its digits is 248832, while the sum is 39.

The square root of 44663664 is about 6683.0879090432. The cubic root of 44663664 is about 354.8009569916.

The spelling of 44663664 in words is "forty-four million, six hundred sixty-three thousand, six hundred sixty-four".