189524970 has 24 divisors (see below), whose sum is σ = 492765156. Its totient is φ = 50539968.

The previous prime is 189524969. The next prime is 189525043. The reversal of 189524970 is 79425981.

It can be written as a sum of positive squares in 2 ways, for example, as 181521729 + 8003241 = 13473^2 + 2829^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1052827 + ... + 1053006.

Almost surely, 2^189524970 is an apocalyptic number.

189524970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189524970 is an abundant number, since it is smaller than the sum of its proper divisors (303240186).

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

189524970 is a wasteful number, since it uses less digits than its factorization.

189524970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2105846 (or 2105843 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 189524970 is about 13766.8068193027. The cubic root of 189524970 is about 574.4102030456.

The spelling of 189524970 in words is "one hundred eighty-nine million, five hundred twenty-four thousand, nine hundred seventy".