189756868 has 48 divisors (see below), whose sum is σ = 392675584. Its totient is φ = 78537600.

The previous prime is 189756863. The next prime is 189756883. The reversal of 189756868 is 868657981.

It is not an unprimeable number, because it can be changed into a prime (189756863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155830 + ... + 157042.

Almost surely, 2^189756868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189756868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196337792).

189756868 is an abundant number, since it is smaller than the sum of its proper divisors (202918716).

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

189756868 is a wasteful number, since it uses less digits than its factorization.

189756868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412 (or 1410 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 58.

The square root of 189756868 is about 13775.2266043067. The cubic root of 189756868 is about 574.6443855311.

The spelling of 189756868 in words is "one hundred eighty-nine million, seven hundred fifty-six thousand, eight hundred sixty-eight".