189015798 has 16 divisors (see below), whose sum is σ = 378166320. Its totient is φ = 62982816.

The previous prime is 189015767. The next prime is 189015803. The reversal of 189015798 is 897510981.

189015798 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 30508 + ... + 36176.

It is an arithmetic number, because the mean of its divisors is an integer number (23635395).

Almost surely, 2^189015798 is an apocalyptic number.

189015798 is an abundant number, since it is smaller than the sum of its proper divisors (189150522).

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

189015798 is a wasteful number, since it uses less digits than its factorization.

189015798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11231.

The product of its (nonzero) digits is 181440, while the sum is 48.

The square root of 189015798 is about 13748.3016405664. The cubic root of 189015798 is about 573.8953440618.

The spelling of 189015798 in words is "one hundred eighty-nine million, fifteen thousand, seven hundred ninety-eight".