18473234 has 16 divisors (see below), whose sum is σ = 30253272. Its totient is φ = 8408448.

The previous prime is 18473233. The next prime is 18473297. The reversal of 18473234 is 43237481.

It can be written as a sum of positive squares in 4 ways, for example, as 16362025 + 2111209 = 4045^2 + 1453^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18473234.

It is not an unprimeable number, because it can be changed into a prime (18473233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2969 + ... + 6764.

Almost surely, 2^18473234 is an apocalyptic number.

18473234 is a deficient number, since it is larger than the sum of its proper divisors (11780038).

18473234 is a wasteful number, since it uses less digits than its factorization.

18473234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9821.

The product of its digits is 16128, while the sum is 32.

The square root of 18473234 is about 4298.0500229755. The cubic root of 18473234 is about 264.3510118943.

The spelling of 18473234 in words is "eighteen million, four hundred seventy-three thousand, two hundred thirty-four".