189433412 has 24 divisors (see below), whose sum is σ = 386601600. Its totient is φ = 81185160.

The previous prime is 189433393. The next prime is 189433421. The reversal of 189433412 is 214334981.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67664 + ... + 70407.

It is an arithmetic number, because the mean of its divisors is an integer number (16108400).

Almost surely, 2^189433412 is an apocalyptic number.

It is an amenable number.

189433412 is an abundant number, since it is smaller than the sum of its proper divisors (197168188).

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

189433412 is a wasteful number, since it uses less digits than its factorization.

189433412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138096 (or 138080 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The square root of 189433412 is about 13763.4811003612. The cubic root of 189433412 is about 574.3176904855.

The spelling of 189433412 in words is "one hundred eighty-nine million, four hundred thirty-three thousand, four hundred twelve".