44401564 has 6 divisors (see below), whose sum is σ = 77702744. Its totient is φ = 22200780.

The previous prime is 44401561. The next prime is 44401601. The reversal of 44401564 is 46510444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44401561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550192 + ... + 5550199.

Almost surely, 2^44401564 is an apocalyptic number.

It is an amenable number.

44401564 is a deficient number, since it is larger than the sum of its proper divisors (33301180).

44401564 is a wasteful number, since it uses less digits than its factorization.

44401564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11100395 (or 11100393 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 44401564 is about 6663.4498572436. The cubic root of 44401564 is about 354.1055682254.

The spelling of 44401564 in words is "forty-four million, four hundred one thousand, five hundred sixty-four".