44816139 has 32 divisors (see below), whose sum is σ = 68965440. Its totient is φ = 28740096.

The previous prime is 44816129. The next prime is 44816159. The reversal of 44816139 is 93161844.

It is not a de Polignac number, because 44816139 - 2¹² = 44812043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44816129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112689 + ... + 113085.

It is an arithmetic number, because the mean of its divisors is an integer number (2155170).

Almost surely, 2^44816139 is an apocalyptic number.

44816139 is a deficient number, since it is larger than the sum of its proper divisors (24149301).

44816139 is a wasteful number, since it uses less digits than its factorization.

44816139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556 (or 550 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 44816139 is about 6694.4857158709. The cubic root of 44816139 is about 355.2042440371.

The spelling of 44816139 in words is "forty-four million, eight hundred sixteen thousand, one hundred thirty-nine".