18472285 has 32 divisors (see below), whose sum is σ = 25734240. Its totient is φ = 12607488.

The previous prime is 18472261. The next prime is 18472291. The reversal of 18472285 is 58227481.

It can be written as a sum of positive squares in 16 ways, for example, as 857476 + 17614809 = 926^2 + 4197^2 .

It is a cyclic number.

It is not a de Polignac number, because 18472285 - 2⁵ = 18472253 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80551 + ... + 80779.

It is an arithmetic number, because the mean of its divisors is an integer number (804195).

Almost surely, 2^18472285 is an apocalyptic number.

It is an amenable number.

18472285 is a deficient number, since it is larger than the sum of its proper divisors (7261955).

18472285 is a wasteful number, since it uses less digits than its factorization.

18472285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337.

The product of its digits is 35840, while the sum is 37.

The square root of 18472285 is about 4297.9396226564. The cubic root of 18472285 is about 264.3464851033.

The spelling of 18472285 in words is "eighteen million, four hundred seventy-two thousand, two hundred eighty-five".