17990204 has 12 divisors (see below), whose sum is σ = 31623144. Its totient is φ = 8955024.

The previous prime is 17990191. The next prime is 17990213. The reversal of 17990204 is 40209971.

It is a congruent number.

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, 8999 + ... + 10814.

It is an arithmetic number, because the mean of its divisors is an integer number (2635262).

Almost surely, 2^17990204 is an apocalyptic number.

It is an amenable number.

17990204 is a deficient number, since it is larger than the sum of its proper divisors (13632940).

17990204 is a wasteful number, since it uses less digits than its factorization.

17990204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20044 (or 20042 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 17990204 is about 4241.4860603331. The cubic root of 17990204 is about 262.0265886036.

The spelling of 17990204 in words is "seventeen million, nine hundred ninety thousand, two hundred four".