44881893 has 60 divisors (see below), whose sum is σ = 79234688. Its totient is φ = 24449040.

The previous prime is 44881883. The next prime is 44881943. The reversal of 44881893 is 39818844.

It is not a de Polignac number, because 44881893 - 2⁴ = 44881877 is a prime.

It is a Duffinian number.

Its product of digits (221184) is a multiple of the sum of its prime divisors (108).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44881813) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 669846 + ... + 669912.

Almost surely, 2^44881893 is an apocalyptic number.

It is an amenable number.

44881893 is a deficient number, since it is larger than the sum of its proper divisors (34352795).

44881893 is an equidigital number, since it uses as much as digits as its factorization.

44881893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 108 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 44881893 is about 6699.3949726822. The cubic root of 44881893 is about 355.3778770708.

The spelling of 44881893 in words is "forty-four million, eight hundred eighty-one thousand, eight hundred ninety-three".