189371964 has 24 divisors (see below), whose sum is σ = 442165248. Its totient is φ = 63081520.

The previous prime is 189371953. The next prime is 189372019. The reversal of 189371964 is 469173981.

It is a happy number.

189371964 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

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, 17029 + ... + 25859.

It is an arithmetic number, because the mean of its divisors is an integer number (18423552).

Almost surely, 2^189371964 is an apocalyptic number.

It is an amenable number.

189371964 is an abundant number, since it is smaller than the sum of its proper divisors (252793284).

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

189371964 is a wasteful number, since it uses less digits than its factorization.

189371964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10625 (or 10623 counting only the distinct ones).

The product of its digits is 326592, while the sum is 48.

The square root of 189371964 is about 13761.2486352075. The cubic root of 189371964 is about 574.2555851269.

The spelling of 189371964 in words is "one hundred eighty-nine million, three hundred seventy-one thousand, nine hundred sixty-four".