168900538 has 16 divisors (see below), whose sum is σ = 270342720. Its totient is φ = 78908256.

The previous prime is 168900509. The next prime is 168900541. The reversal of 168900538 is 835009861.

It is a happy number.

168900538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 168900538.

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, 27670 + ... + 33217.

It is an arithmetic number, because the mean of its divisors is an integer number (16896420).

Almost surely, 2^168900538 is an apocalyptic number.

168900538 is a deficient number, since it is larger than the sum of its proper divisors (101442182).

168900538 is a wasteful number, since it uses less digits than its factorization.

168900538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60981.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 168900538 is about 12996.1739754437. The cubic root of 168900538 is about 552.7689979528.

The spelling of 168900538 in words is "one hundred sixty-eight million, nine hundred thousand, five hundred thirty-eight".