189936274 has 32 divisors (see below), whose sum is σ = 346420800. Its totient is φ = 76976640.

The previous prime is 189936251. The next prime is 189936317. The reversal of 189936274 is 472639981.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6259 + ... + 20470.

It is an arithmetic number, because the mean of its divisors is an integer number (10825650).

Almost surely, 2^189936274 is an apocalyptic number.

189936274 is a deficient number, since it is larger than the sum of its proper divisors (156484526).

189936274 is a wasteful number, since it uses less digits than its factorization.

189936274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26778.

The product of its digits is 653184, while the sum is 49.

The square root of 189936274 is about 13781.7369732556. The cubic root of 189936274 is about 574.8254280381.

The spelling of 189936274 in words is "one hundred eighty-nine million, nine hundred thirty-six thousand, two hundred seventy-four".