168990204 has 24 divisors (see below), whose sum is σ = 394522240. Its totient is φ = 56299824.

The previous prime is 168990197. The next prime is 168990209. The reversal of 168990204 is 402099861.

168990204 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168990209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37707 + ... + 41949.

Almost surely, 2^168990204 is an apocalyptic number.

It is an amenable number.

168990204 is an abundant number, since it is smaller than the sum of its proper divisors (225532036).

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

168990204 is a wasteful number, since it uses less digits than its factorization.

168990204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7569 (or 7567 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 168990204 is about 12999.6232253093. The cubic root of 168990204 is about 552.8667987398.

The spelling of 168990204 in words is "one hundred sixty-eight million, nine hundred ninety thousand, two hundred four".