44636544 has 48 divisors (see below), whose sum is σ = 128449620. Its totient is φ = 14878464.

The previous prime is 44636521. The next prime is 44636551. The reversal of 44636544 is 44563644.

It is a tau number, because it is divible by the number of its divisors (48).

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

It is a junction number, because it is equal to n+sod(n) for n = 44636499 and 44636508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18222 + ... + 20525.

Almost surely, 2^44636544 is an apocalyptic number.

It is an amenable number.

44636544 is an abundant number, since it is smaller than the sum of its proper divisors (83813076).

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

44636544 is a wasteful number, since it uses less digits than its factorization.

44636544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38767 (or 38752 counting only the distinct ones).

The product of its digits is 138240, while the sum is 36.

The square root of 44636544 is about 6681.0585987551. The cubic root of 44636544 is about 354.7291301470.

Subtracting from 44636544 its reverse (44563644), we obtain a square (72900 = 270²).

The spelling of 44636544 in words is "forty-four million, six hundred thirty-six thousand, five hundred forty-four".