44638868 has 12 divisors (see below), whose sum is σ = 78616692. Its totient is φ = 22176960.

The previous prime is 44638829. The next prime is 44638897. The reversal of 44638868 is 86883644.

It can be written as a sum of positive squares in 2 ways, for example, as 25120144 + 19518724 = 5012^2 + 4418^2 .

It is a congruent number.

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, 34913 + ... + 36168.

It is an arithmetic number, because the mean of its divisors is an integer number (6551391).

Almost surely, 2^44638868 is an apocalyptic number.

It is an amenable number.

44638868 is a deficient number, since it is larger than the sum of its proper divisors (33977824).

44638868 is a wasteful number, since it uses less digits than its factorization.

44638868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71242 (or 71240 counting only the distinct ones).

The product of its digits is 884736, while the sum is 47.

The square root of 44638868 is about 6681.2325210248. The cubic root of 44638868 is about 354.7352863598.

It can be divided in two parts, 4463 and 8868, that added together give a palindrome (13331).

The spelling of 44638868 in words is "forty-four million, six hundred thirty-eight thousand, eight hundred sixty-eight".