44639424 has 140 divisors (see below), whose sum is σ = 135229600. Its totient is φ = 14556672.

The previous prime is 44639393. The next prime is 44639443. The reversal of 44639424 is 42493644.

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

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 409482 + ... + 409590.

Almost surely, 2^44639424 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 44639424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67614800).

44639424 is an abundant number, since it is smaller than the sum of its proper divisors (90590176).

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

44639424 is a wasteful number, since it uses less digits than its factorization.

44639424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212 (or 193 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 44639424 is about 6681.2741299845. The cubic root of 44639424 is about 354.7367591570.

The spelling of 44639424 in words is "forty-four million, six hundred thirty-nine thousand, four hundred twenty-four".