18474344 has 16 divisors (see below), whose sum is σ = 39588000. Its totient is φ = 7917552.

The previous prime is 18474343. The next prime is 18474367. The reversal of 18474344 is 44347481.

It is not an unprimeable number, because it can be changed into a prime (18474343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164894 + ... + 165005.

It is an arithmetic number, because the mean of its divisors is an integer number (2474250).

Almost surely, 2^18474344 is an apocalyptic number.

18474344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18474344 is an abundant number, since it is smaller than the sum of its proper divisors (21113656).

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

18474344 is a wasteful number, since it uses less digits than its factorization.

18474344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329912 (or 329908 counting only the distinct ones).

The product of its digits is 43008, while the sum is 35.

The square root of 18474344 is about 4298.1791493608. The cubic root of 18474344 is about 264.3563064689.

The spelling of 18474344 in words is "eighteen million, four hundred seventy-four thousand, three hundred forty-four".