189200646 has 48 divisors (see below), whose sum is σ = 416785824. Its totient is φ = 62022912.

The previous prime is 189200639. The next prime is 189200677. The reversal of 189200646 is 646002981.

189200646 is a `hidden beast` number, since 1 + 8 + 9 + 2 + 0 + 0 + 646 = 666.

189200646 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 189200646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 339400 + ... + 339956.

It is an arithmetic number, because the mean of its divisors is an integer number (8683038).

Almost surely, 2^189200646 is an apocalyptic number.

189200646 is an abundant number, since it is smaller than the sum of its proper divisors (227585178).

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

189200646 is a wasteful number, since it uses less digits than its factorization.

189200646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845 (or 842 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 189200646 is about 13755.0225735911. The cubic root of 189200646 is about 574.0823634274.

The spelling of 189200646 in words is "one hundred eighty-nine million, two hundred thousand, six hundred forty-six".