18474494 has 8 divisors (see below), whose sum is σ = 27736608. Its totient is φ = 9228960.

The previous prime is 18474487. The next prime is 18474503. The reversal of 18474494 is 49447481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 827 + ... + 6134.

It is an arithmetic number, because the mean of its divisors is an integer number (3467076).

Almost surely, 2^18474494 is an apocalyptic number.

18474494 is a deficient number, since it is larger than the sum of its proper divisors (9262114).

18474494 is a wasteful number, since it uses less digits than its factorization.

18474494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8290.

The product of its digits is 129024, while the sum is 41.

The square root of 18474494 is about 4298.1965985748. The cubic root of 18474494 is about 264.3570219356.

The spelling of 18474494 in words is "eighteen million, four hundred seventy-four thousand, four hundred ninety-four".