18740504 has 16 divisors (see below), whose sum is σ = 35397000. Its totient is φ = 9301312.

The previous prime is 18740489. The next prime is 18740531. The reversal of 18740504 is 40504781.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 7454 + ... + 9645.

Almost surely, 2^18740504 is an apocalyptic number.

It is an amenable number.

18740504 is a deficient number, since it is larger than the sum of its proper divisors (16656496).

18740504 is a wasteful number, since it uses less digits than its factorization.

18740504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17242 (or 17238 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 18740504 is about 4329.0303764238. The cubic root of 18740504 is about 265.6197858077.

The spelling of 18740504 in words is "eighteen million, seven hundred forty thousand, five hundred four".