44387994 has 64 divisors (see below), whose sum is σ = 105235200. Its totient is φ = 12218880.

The previous prime is 44387983. The next prime is 44388007. The reversal of 44387994 is 49978344.

44387994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×44387994² = 3940588022688072, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 256492 + ... + 256664.

It is an arithmetic number, because the mean of its divisors is an integer number (1644300).

Almost surely, 2^44387994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44387994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52617600).

44387994 is an abundant number, since it is smaller than the sum of its proper divisors (60847206).

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

44387994 is a wasteful number, since it uses less digits than its factorization.

44387994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375.

The product of its digits is 870912, while the sum is 48.

The square root of 44387994 is about 6662.4315381098. The cubic root of 44387994 is about 354.0694906512.

The spelling of 44387994 in words is "forty-four million, three hundred eighty-seven thousand, nine hundred ninety-four".