44093664 has 72 divisors (see below), whose sum is σ = 126067032. Its totient is φ = 14618880.

The previous prime is 44093639. The next prime is 44093711. The reversal of 44093664 is 46639044.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81234 + ... + 81774.

It is an arithmetic number, because the mean of its divisors is an integer number (1750931).

Almost surely, 2^44093664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44093664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63033516).

44093664 is an abundant number, since it is smaller than the sum of its proper divisors (81973368).

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

44093664 is a wasteful number, since it uses less digits than its factorization.

44093664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840 (or 829 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 44093664 is about 6640.3060170447. The cubic root of 44093664 is about 353.2851609497.

The spelling of 44093664 in words is "forty-four million, ninety-three thousand, six hundred sixty-four".