43918444 has 12 divisors (see below), whose sum is σ = 79336768. Its totient is φ = 21250800.

The previous prime is 43918423. The next prime is 43918451. The reversal of 43918444 is 44481934.

It is a happy number.

It is a super-2 number, since 2×43918444² = 3857659446762272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176967 + ... + 177214.

Almost surely, 2^43918444 is an apocalyptic number.

It is an amenable number.

43918444 is a deficient number, since it is larger than the sum of its proper divisors (35418324).

43918444 is a wasteful number, since it uses less digits than its factorization.

43918444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354216 (or 354214 counting only the distinct ones).

The product of its digits is 55296, while the sum is 37.

The square root of 43918444 is about 6627.0992145885. The cubic root of 43918444 is about 352.8165765903.

The spelling of 43918444 in words is "forty-three million, nine hundred eighteen thousand, four hundred forty-four".