44139456 has 42 divisors (see below), whose sum is σ = 126519432. Its totient is φ = 14712960.

The previous prime is 44139437. The next prime is 44139481. The reversal of 44139456 is 65493144.

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

It is a self number, because there is not a number n which added to its sum of digits gives 44139456.

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, 37740 + ... + 38891.

Almost surely, 2^44139456 is an apocalyptic number.

It is an amenable number.

44139456 is an abundant number, since it is smaller than the sum of its proper divisors (82379976).

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

44139456 is a wasteful number, since it uses less digits than its factorization.

44139456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76649 (or 76636 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 44139456 is about 6643.7531561611. The cubic root of 44139456 is about 353.4074161342.

The spelling of 44139456 in words is "forty-four million, one hundred thirty-nine thousand, four hundred fifty-six".