168836090 has 24 divisors (see below), whose sum is σ = 320748660. Its totient is φ = 63978624.

The previous prime is 168836089. The next prime is 168836093. The reversal of 168836090 is 90638861.

It is a happy number.

168836090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 160604929 + 8231161 = 12673^2 + 2869^2 .

It is not an unprimeable number, because it can be changed into a prime (168836093) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19775 + ... + 26994.

Almost surely, 2^168836090 is an apocalyptic number.

168836090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168836090 is a deficient number, since it is larger than the sum of its proper divisors (151912570).

168836090 is a wasteful number, since it uses less digits than its factorization.

168836090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46814 (or 46795 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 168836090 is about 12993.6942398996. The cubic root of 168836090 is about 552.6986816414.

The spelling of 168836090 in words is "one hundred sixty-eight million, eight hundred thirty-six thousand, ninety".