189739536 has 40 divisors (see below), whose sum is σ = 560184384. Its totient is φ = 54211200.

The previous prime is 189739519. The next prime is 189739549. The reversal of 189739536 is 635937981.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282015 + ... + 282686.

Almost surely, 2^189739536 is an apocalyptic number.

189739536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

189739536 is an abundant number, since it is smaller than the sum of its proper divisors (370444848).

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

189739536 is a wasteful number, since it uses less digits than its factorization.

189739536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564719 (or 564713 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 51.

The square root of 189739536 is about 13774.5974895820. The cubic root of 189739536 is about 574.6268893883.

The spelling of 189739536 in words is "one hundred eighty-nine million, seven hundred thirty-nine thousand, five hundred thirty-six".