44399131 has 16 divisors (see below), whose sum is σ = 53512704. Its totient is φ = 36013824.

The previous prime is 44399101. The next prime is 44399141. The reversal of 44399131 is 13199344.

It is not a de Polignac number, because 44399131 - 2⁹ = 44398619 is a prime.

It is a super-2 number, since 2×44399131² = 3942565667110322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (44399101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14196 + ... + 17038.

It is an arithmetic number, because the mean of its divisors is an integer number (3344544).

Almost surely, 2^44399131 is an apocalyptic number.

44399131 is a deficient number, since it is larger than the sum of its proper divisors (9113573).

44399131 is a wasteful number, since it uses less digits than its factorization.

44399131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2970.

The product of its digits is 11664, while the sum is 34.

The square root of 44399131 is about 6663.2672916520. The cubic root of 44399131 is about 354.0991003257.

The spelling of 44399131 in words is "forty-four million, three hundred ninety-nine thousand, one hundred thirty-one".