189641270 has 64 divisors (see below), whose sum is σ = 428803200. Its totient is φ = 60004224.

The previous prime is 189641251. The next prime is 189641297. The reversal of 189641270 is 72146981.

It is a super-2 number, since 2×189641270² = 71927622574425800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42464 + ... + 46716.

It is an arithmetic number, because the mean of its divisors is an integer number (6700050).

Almost surely, 2^189641270 is an apocalyptic number.

189641270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189641270 is an abundant number, since it is smaller than the sum of its proper divisors (239161930).

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

189641270 is a wasteful number, since it uses less digits than its factorization.

189641270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4294 (or 4280 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 189641270 is about 13771.0300994515. The cubic root of 189641270 is about 574.5276726096.

The spelling of 189641270 in words is "one hundred eighty-nine million, six hundred forty-one thousand, two hundred seventy".