189982460 has 24 divisors (see below), whose sum is σ = 407453760. Its totient is φ = 74375744.

The previous prime is 189982447. The next prime is 189982483. The reversal of 189982460 is 64289981.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100115 + ... + 101994.

It is an arithmetic number, because the mean of its divisors is an integer number (16977240).

Almost surely, 2^189982460 is an apocalyptic number.

189982460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189982460 is an abundant number, since it is smaller than the sum of its proper divisors (217471300).

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

189982460 is a wasteful number, since it uses less digits than its factorization.

189982460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202165 (or 202163 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 47.

The square root of 189982460 is about 13783.4124947344. The cubic root of 189982460 is about 574.8720168843.

The spelling of 189982460 in words is "one hundred eighty-nine million, nine hundred eighty-two thousand, four hundred sixty".