189943296 has 40 divisors (see below), whose sum is σ = 506024904. Its totient is φ = 63313920.

The previous prime is 189943279. The next prime is 189943307. The reversal of 189943296 is 692349981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60295 + ... + 63366.

Almost surely, 2^189943296 is an apocalyptic number.

189943296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

189943296 is an abundant number, since it is smaller than the sum of its proper divisors (316081608).

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

189943296 is an equidigital number, since it uses as much as digits as its factorization.

189943296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123682 (or 123666 counting only the distinct ones).

The product of its digits is 839808, while the sum is 51.

The square root of 189943296 is about 13781.9917283388. The cubic root of 189943296 is about 574.8325117726.

The spelling of 189943296 in words is "one hundred eighty-nine million, nine hundred forty-three thousand, two hundred ninety-six".