45918444 has 48 divisors (see below), whose sum is σ = 125879040. Its totient is φ = 12843840.

The previous prime is 45918437. The next prime is 45918449. The reversal of 45918444 is 44481954.

It is a super-2 number, since 2×45918444² = 4217006998762272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (45918449) 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, 11664 + ... + 15095.

It is an arithmetic number, because the mean of its divisors is an integer number (2622480).

Almost surely, 2^45918444 is an apocalyptic number.

45918444 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

45918444 is an abundant number, since it is smaller than the sum of its proper divisors (79960596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45918444 is a wasteful number, since it uses less digits than its factorization.

45918444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26790 (or 26788 counting only the distinct ones).

The product of its digits is 92160, while the sum is 39.

The square root of 45918444 is about 6776.3149277465. The cubic root of 45918444 is about 358.0929088989.

The spelling of 45918444 in words is "forty-five million, nine hundred eighteen thousand, four hundred forty-four".