18568434 has 16 divisors (see below), whose sum is σ = 39091680. Its totient is φ = 5863680.

The previous prime is 18568427. The next prime is 18568457. The reversal of 18568434 is 43486581.

It is a junction number, because it is equal to n+sod(n) for n = 18568392 and 18568401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81327 + ... + 81554.

It is an arithmetic number, because the mean of its divisors is an integer number (2443230).

Almost surely, 2^18568434 is an apocalyptic number.

18568434 is an abundant number, since it is smaller than the sum of its proper divisors (20523246).

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

18568434 is a wasteful number, since it uses less digits than its factorization.

18568434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162905.

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

The square root of 18568434 is about 4309.1105810828. The cubic root of 18568434 is about 264.8043364021.

The spelling of 18568434 in words is "eighteen million, five hundred sixty-eight thousand, four hundred thirty-four".