44639985 has 16 divisors (see below), whose sum is σ = 76918464. Its totient is φ = 21976512.

The previous prime is 44639971. The next prime is 44639993. The reversal of 44639985 is 58993644.

44639985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 44639985 - 2¹² = 44635889 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 114267 + ... + 114656.

It is an arithmetic number, because the mean of its divisors is an integer number (4807404).

Almost surely, 2^44639985 is an apocalyptic number.

It is an amenable number.

44639985 is a deficient number, since it is larger than the sum of its proper divisors (32278479).

44639985 is a wasteful number, since it uses less digits than its factorization.

44639985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228944.

The product of its digits is 933120, while the sum is 48.

The square root of 44639985 is about 6681.3161128628. The cubic root of 44639985 is about 354.7382451864.

The spelling of 44639985 in words is "forty-four million, six hundred thirty-nine thousand, nine hundred eighty-five".