189363994 has 24 divisors (see below), whose sum is σ = 307142388. Its totient is φ = 87497280.

The previous prime is 189363989. The next prime is 189364001. The reversal of 189363994 is 499363981.

189363994 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 123543225 + 65820769 = 11115^2 + 8113^2 .

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

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, 26404 + ... + 32800.

Almost surely, 2^189363994 is an apocalyptic number.

189363994 is a deficient number, since it is larger than the sum of its proper divisors (117778394).

189363994 is a wasteful number, since it uses less digits than its factorization.

189363994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6478 (or 6459 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 52.

The square root of 189363994 is about 13760.9590508801. The cubic root of 189363994 is about 574.2475288812.

The spelling of 189363994 in words is "one hundred eighty-nine million, three hundred sixty-three thousand, nine hundred ninety-four".