18530504 has 16 divisors (see below), whose sum is σ = 34849500. Its totient is φ = 9237312.

The previous prime is 18530461. The next prime is 18530537. The reversal of 18530504 is 40503581.

It can be written as a sum of positive squares in 2 ways, for example, as 17724100 + 806404 = 4210^2 + 898^2 .

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, 527 + ... + 6110.

Almost surely, 2^18530504 is an apocalyptic number.

It is an amenable number.

18530504 is a deficient number, since it is larger than the sum of its proper divisors (16318996).

18530504 is a wasteful number, since it uses less digits than its factorization.

18530504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6992 (or 6988 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 18530504 is about 4304.7071909713. The cubic root of 18530504 is about 264.6239069831.

The spelling of 18530504 in words is "eighteen million, five hundred thirty thousand, five hundred four".