44237664 has 72 divisors (see below), whose sum is σ = 130483080. Its totient is φ = 14743296.

The previous prime is 44237663. The next prime is 44237693. The reversal of 44237664 is 46673244.

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 not an unprimeable number, because it can be changed into a prime (44237663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4932 + ... + 10620.

It is an arithmetic number, because the mean of its divisors is an integer number (1812265).

Almost surely, 2^44237664 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 44237664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65241540).

44237664 is an abundant number, since it is smaller than the sum of its proper divisors (86245416).

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

44237664 is an equidigital number, since it uses as much as digits as its factorization.

44237664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5714 (or 5694 counting only the distinct ones).

The product of its digits is 96768, while the sum is 36.

The square root of 44237664 is about 6651.1400526526. The cubic root of 44237664 is about 353.6693263742.

The spelling of 44237664 in words is "forty-four million, two hundred thirty-seven thousand, six hundred sixty-four".