18434475 has 18 divisors (see below), whose sum is σ = 33018596. Its totient is φ = 9831600.

The previous prime is 18434417. The next prime is 18434483. The reversal of 18434475 is 57443481.

18434475 is a `hidden beast` number, since 184 + 3 + 4 + 475 = 666.

It is not a de Polignac number, because 18434475 - 2⁷ = 18434347 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 40741 + ... + 41190.

Almost surely, 2^18434475 is an apocalyptic number.

18434475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18434475 is a deficient number, since it is larger than the sum of its proper divisors (14584121).

18434475 is a wasteful number, since it uses less digits than its factorization.

18434475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81947 (or 81939 counting only the distinct ones).

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

The square root of 18434475 is about 4293.5387502618. The cubic root of 18434475 is about 264.1660026896.

The spelling of 18434475 in words is "eighteen million, four hundred thirty-four thousand, four hundred seventy-five".