189392836 has 12 divisors (see below), whose sum is σ = 348881680. Its totient is φ = 89712360.

The previous prime is 189392831. The next prime is 189392837. The reversal of 189392836 is 638293981.

It is a self number, because there is not a number n which added to its sum of digits gives 189392836.

It is not an unprimeable number, because it can be changed into a prime (189392831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1245930 + ... + 1246081.

Almost surely, 2^189392836 is an apocalyptic number.

It is an amenable number.

189392836 is a deficient number, since it is larger than the sum of its proper divisors (159488844).

189392836 is a wasteful number, since it uses less digits than its factorization.

189392836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2492034 (or 2492032 counting only the distinct ones).

The product of its digits is 559872, while the sum is 49.

The square root of 189392836 is about 13762.0069757285. The cubic root of 189392836 is about 574.2766819179.

The spelling of 189392836 in words is "one hundred eighty-nine million, three hundred ninety-two thousand, eight hundred thirty-six".