44040564 has 24 divisors (see below), whose sum is σ = 114179520. Its totient is φ = 14680152.

The previous prime is 44040559. The next prime is 44040569. The reversal of 44040564 is 46504044.

It is an interprime number because it is at equal distance from previous prime (44040559) and next prime (44040569).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44040569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203784 + ... + 203999.

It is an arithmetic number, because the mean of its divisors is an integer number (4757480).

Almost surely, 2^44040564 is an apocalyptic number.

It is an amenable number.

44040564 is an abundant number, since it is smaller than the sum of its proper divisors (70138956).

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

44040564 is a wasteful number, since it uses less digits than its factorization.

44040564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407796 (or 407788 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 44040564 is about 6636.3065028674. The cubic root of 44040564 is about 353.1432888849.

The spelling of 44040564 in words is "forty-four million, forty thousand, five hundred sixty-four".