168390572 has 12 divisors (see below), whose sum is σ = 336781200. Its totient is φ = 72167376.

The previous prime is 168390539. The next prime is 168390583. The reversal of 168390572 is 275093861.

168390572 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

168390572 is an admirable number.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

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, 3006947 + ... + 3007002.

It is an arithmetic number, because the mean of its divisors is an integer number (28065100).

Almost surely, 2^168390572 is an apocalyptic number.

It is an amenable number.

168390572 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

168390572 is a wasteful number, since it uses less digits than its factorization.

168390572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6013960 (or 6013958 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 168390572 is about 12976.5392921225. The cubic root of 168390572 is about 552.2121069279.

The spelling of 168390572 in words is "one hundred sixty-eight million, three hundred ninety thousand, five hundred seventy-two".