189685474 has 32 divisors (see below), whose sum is σ = 330039360. Its totient is φ = 80856000.

The previous prime is 189685471. The next prime is 189685477. The reversal of 189685474 is 474586981.

It is an interprime number because it is at equal distance from previous prime (189685471) and next prime (189685477).

It is not an unprimeable number, because it can be changed into a prime (189685471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39972 + ... + 44464.

It is an arithmetic number, because the mean of its divisors is an integer number (10313730).

Almost surely, 2^189685474 is an apocalyptic number.

189685474 is a deficient number, since it is larger than the sum of its proper divisors (140353886).

189685474 is a wasteful number, since it uses less digits than its factorization.

189685474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4626.

The product of its digits is 1935360, while the sum is 52.

The square root of 189685474 is about 13772.6349693877. The cubic root of 189685474 is about 574.5723085482.

It can be divided in two parts, 18968 and 5474, that added together give a palindrome (24442).

The spelling of 189685474 in words is "one hundred eighty-nine million, six hundred eighty-five thousand, four hundred seventy-four".