189208572 has 48 divisors (see below), whose sum is σ = 534240000. Its totient is φ = 50879232.

The previous prime is 189208567. The next prime is 189208573. The reversal of 189208572 is 275802981.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189208573) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 64822 + ... + 67677.

It is an arithmetic number, because the mean of its divisors is an integer number (11130000).

Almost surely, 2^189208572 is an apocalyptic number.

189208572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

189208572 is an abundant number, since it is smaller than the sum of its proper divisors (345031428).

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

189208572 is a wasteful number, since it uses less digits than its factorization.

189208572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132530 (or 132528 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 189208572 is about 13755.3106835142. The cubic root of 189208572 is about 574.0903798082.

The spelling of 189208572 in words is "one hundred eighty-nine million, two hundred eight thousand, five hundred seventy-two".