189959368 has 32 divisors (see below), whose sum is σ = 365835960. Its totient is φ = 92436480.

The previous prime is 189959317. The next prime is 189959381. The reversal of 189959368 is 863959981.

It can be written as a sum of positive squares in 4 ways, for example, as 140707044 + 49252324 = 11862^2 + 7018^2 .

It is a super-2 number, since 2×189959368² = 72169122981918848, which contains 22 as substring.

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, 45330 + ... + 49342.

Almost surely, 2^189959368 is an apocalyptic number.

It is an amenable number.

189959368 is a deficient number, since it is larger than the sum of its proper divisors (175876592).

189959368 is a wasteful number, since it uses less digits than its factorization.

189959368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4177 (or 4173 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 58.

The square root of 189959368 is about 13782.5747957339. The cubic root of 189959368 is about 574.8487244139.

The spelling of 189959368 in words is "one hundred eighty-nine million, nine hundred fifty-nine thousand, three hundred sixty-eight".