189746880 has 112 divisors (see below), whose sum is σ = 605698560. Its totient is φ = 50326528.

The previous prime is 189746867. The next prime is 189746899. The reversal of 189746880 is 88647981.

189746880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229027 + ... + 229853.

Almost surely, 2^189746880 is an apocalyptic number.

189746880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189746880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302849280).

189746880 is an abundant number, since it is smaller than the sum of its proper divisors (415951680).

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

189746880 is a wasteful number, since it uses less digits than its factorization.

189746880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086 (or 1076 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 51.

The square root of 189746880 is about 13774.8640646650. The cubic root of 189746880 is about 574.6343030698.

The spelling of 189746880 in words is "one hundred eighty-nine million, seven hundred forty-six thousand, eight hundred eighty".