189070180 has 48 divisors (see below), whose sum is σ = 429562224. Its totient is φ = 69488640.

The previous prime is 189070153. The next prime is 189070187. The reversal of 189070180 is 81070981.

It can be written as a sum of positive squares in 8 ways, for example, as 98287396 + 90782784 = 9914^2 + 9528^2 .

It is not an unprimeable number, because it can be changed into a prime (189070187) 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, 59020 + ... + 62140.

It is an arithmetic number, because the mean of its divisors is an integer number (8949213).

Almost surely, 2^189070180 is an apocalyptic number.

189070180 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 189070180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214781112).

189070180 is an abundant number, since it is smaller than the sum of its proper divisors (240492044).

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

189070180 is a wasteful number, since it uses less digits than its factorization.

189070180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3376 (or 3374 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 34.

The square root of 189070180 is about 13750.2792698912. The cubic root of 189070180 is about 573.9503775286.

The spelling of 189070180 in words is "one hundred eighty-nine million, seventy thousand, one hundred eighty".