44638018 has 16 divisors (see below), whose sum is σ = 69439680. Its totient is φ = 21495376.

The previous prime is 44638003. The next prime is 44638067. The reversal of 44638018 is 81083644.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31971 + ... + 33337.

It is an arithmetic number, because the mean of its divisors is an integer number (4339980).

Almost surely, 2^44638018 is an apocalyptic number.

44638018 is a deficient number, since it is larger than the sum of its proper divisors (24801662).

44638018 is a wasteful number, since it uses less digits than its factorization.

44638018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1961.

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 44638018 is about 6681.1689097043. The cubic root of 44638018 is about 354.7330347577.

The spelling of 44638018 in words is "forty-four million, six hundred thirty-eight thousand, eighteen".