44123013 has 36 divisors (see below), whose sum is σ = 72369024. Its totient is φ = 25858800.

The previous prime is 44122999. The next prime is 44123017. The reversal of 44123013 is 31032144.

It is not a de Polignac number, because 44123013 - 2¹⁶ = 44057477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44123017) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 33106 + ... + 34412.

Almost surely, 2^44123013 is an apocalyptic number.

It is an amenable number.

44123013 is a deficient number, since it is larger than the sum of its proper divisors (28246011).

44123013 is a wasteful number, since it uses less digits than its factorization.

44123013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366 (or 1352 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 44123013 is about 6642.5155626464. The cubic root of 44123013 is about 353.3635264535.

Adding to 44123013 its reverse (31032144), we get a palindrome (75155157).

The spelling of 44123013 in words is "forty-four million, one hundred twenty-three thousand, thirteen".