44642668 has 24 divisors (see below), whose sum is σ = 91187712. Its totient is φ = 18724944.

The previous prime is 44642657. The next prime is 44642677. The reversal of 44642668 is 86624644.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 44642668.

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, 15646 + ... + 18277.

It is an arithmetic number, because the mean of its divisors is an integer number (3799488).

Almost surely, 2^44642668 is an apocalyptic number.

It is an amenable number.

44642668 is an abundant number, since it is smaller than the sum of its proper divisors (46545044).

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

44642668 is a wasteful number, since it uses less digits than its factorization.

44642668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33981 (or 33979 counting only the distinct ones).

The product of its digits is 221184, while the sum is 40.

The square root of 44642668 is about 6681.5168936402. The cubic root of 44642668 is about 354.7453519961.

The spelling of 44642668 in words is "forty-four million, six hundred forty-two thousand, six hundred sixty-eight".