44972864 has 14 divisors (see below), whose sum is σ = 89243154. Its totient is φ = 22486400.

The previous prime is 44972839. The next prime is 44972897. The reversal of 44972864 is 46827944.

It can be written as a sum of positive squares in only one way, i.e., 44622400 + 350464 = 6680^2 + 592^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 351287 + ... + 351414.

It is an arithmetic number, because the mean of its divisors is an integer number (6374511).

Almost surely, 2^44972864 is an apocalyptic number.

It is an amenable number.

44972864 is a deficient number, since it is larger than the sum of its proper divisors (44270290).

44972864 is an equidigital number, since it uses as much as digits as its factorization.

44972864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702713 (or 702703 counting only the distinct ones).

The product of its digits is 387072, while the sum is 44.

The square root of 44972864 is about 6706.1810294683. The cubic root of 44972864 is about 355.6178198828.

The spelling of 44972864 in words is "forty-four million, nine hundred seventy-two thousand, eight hundred sixty-four".