44638864 has 10 divisors (see below), whose sum is σ = 86487830. Its totient is φ = 22319424.

The previous prime is 44638829. The next prime is 44638897. The reversal of 44638864 is 46883644.

It can be written as a sum of positive squares in only one way, i.e., 34904464 + 9734400 = 5908^2 + 3120^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 44638864.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1394949 + ... + 1394980.

It is an arithmetic number, because the mean of its divisors is an integer number (8648783).

Almost surely, 2^44638864 is an apocalyptic number.

It is an amenable number.

44638864 is a deficient number, since it is larger than the sum of its proper divisors (41848966).

44638864 is a wasteful number, since it uses less digits than its factorization.

44638864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2789937 (or 2789931 counting only the distinct ones).

The product of its digits is 442368, while the sum is 43.

The square root of 44638864 is about 6681.2322216789. The cubic root of 44638864 is about 354.7352757641.

The spelling of 44638864 in words is "forty-four million, six hundred thirty-eight thousand, eight hundred sixty-four".