18474534 has 32 divisors (see below), whose sum is σ = 44214240. Its totient is φ = 5684256.

The previous prime is 18474509. The next prime is 18474541. The reversal of 18474534 is 43547481.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12457 + ... + 13860.

It is an arithmetic number, because the mean of its divisors is an integer number (1381695).

Almost surely, 2^18474534 is an apocalyptic number.

18474534 is an abundant number, since it is smaller than the sum of its proper divisors (25739706).

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

18474534 is a wasteful number, since it uses less digits than its factorization.

18474534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26341 (or 26335 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 18474534 is about 4298.2012516866. The cubic root of 18474534 is about 264.3572127261.

It can be divided in two parts, 18 and 474534, that added together give a cube (474552 = 78³).

The spelling of 18474534 in words is "eighteen million, four hundred seventy-four thousand, five hundred thirty-four".