16990204 has 24 divisors (see below), whose sum is σ = 37070208. Its totient is φ = 6619440.

The previous prime is 16990177. The next prime is 16990213. The reversal of 16990204 is 40209961.

It is a happy number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27274 + ... + 27889.

It is an arithmetic number, because the mean of its divisors is an integer number (1544592).

Almost surely, 2^16990204 is an apocalyptic number.

16990204 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

16990204 is an abundant number, since it is smaller than the sum of its proper divisors (20080004).

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

16990204 is a wasteful number, since it uses less digits than its factorization.

16990204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55185 (or 55183 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 16990204 is about 4121.9175149437. The cubic root of 16990204 is about 257.0787608028.

The spelling of 16990204 in words is "sixteen million, nine hundred ninety thousand, two hundred four".