189825916 has 12 divisors (see below), whose sum is σ = 379651888. Its totient is φ = 81353952.

The previous prime is 189825869. The next prime is 189825949. The reversal of 189825916 is 619528981.

189825916 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 189825916.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3389721 + ... + 3389776.

Almost surely, 2^189825916 is an apocalyptic number.

It is an amenable number.

189825916 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.

189825916 is a wasteful number, since it uses less digits than its factorization.

189825916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6779508 (or 6779506 counting only the distinct ones).

The product of its digits is 311040, while the sum is 49.

The square root of 189825916 is about 13777.7326146213. The cubic root of 189825916 is about 574.7140768757.

The spelling of 189825916 in words is "one hundred eighty-nine million, eight hundred twenty-five thousand, nine hundred sixteen".