44597664 has 72 divisors (see below), whose sum is σ = 134299620. Its totient is φ = 13989888.

The previous prime is 44597659. The next prime is 44597717. The reversal of 44597664 is 46679544.

It can be written as a sum of positive squares in 2 ways, for example, as 44355600 + 242064 = 6660^2 + 492^2 .

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

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, 342 + ... + 9450.

Almost surely, 2^44597664 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 44597664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67149810).

44597664 is an abundant number, since it is smaller than the sum of its proper divisors (89701956).

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

44597664 is a wasteful number, since it uses less digits than its factorization.

44597664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9142 (or 9131 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 44597664 is about 6678.1482463330. The cubic root of 44597664 is about 354.6261063785.

It can be divided in two parts, 445976 and 64, that added together give a triangular number (446040 = T₉₄₄).

The spelling of 44597664 in words is "forty-four million, five hundred ninety-seven thousand, six hundred sixty-four".