18797004 has 36 divisors (see below), whose sum is σ = 50017240. Its totient is φ = 5935680.

The previous prime is 18796993. The next prime is 18797021. The reversal of 18797004 is 40079781.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 18797004.

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 11 ways as a sum of consecutive naturals, for example, 13057 + ... + 14424.

Almost surely, 2^18797004 is an apocalyptic number.

It is an amenable number.

18797004 is an abundant number, since it is smaller than the sum of its proper divisors (31220236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18797004 is a wasteful number, since it uses less digits than its factorization.

18797004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27510 (or 27505 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 18797004 is about 4335.5511760329. The cubic root of 18797004 is about 265.8864535069.

The spelling of 18797004 in words is "eighteen million, seven hundred ninety-seven thousand, four".