189174474 has 32 divisors (see below), whose sum is σ = 420840000. Its totient is φ = 62990352.

The previous prime is 189174457. The next prime is 189174497. The reversal of 189174474 is 474471981.

It is a happy number.

189174474 is a `hidden beast` number, since 1 + 8 + 9 + 174 + 474 = 666.

It is a super-2 number, since 2×189174474² = 71573963226353352, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89077 + ... + 91175.

It is an arithmetic number, because the mean of its divisors is an integer number (13151250).

Almost surely, 2^189174474 is an apocalyptic number.

189174474 is an abundant number, since it is smaller than the sum of its proper divisors (231665526).

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

189174474 is a wasteful number, since it uses less digits than its factorization.

189174474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3779 (or 3773 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 189174474 is about 13754.0711791091. The cubic root of 189174474 is about 574.0558913958.

The spelling of 189174474 in words is "one hundred eighty-nine million, one hundred seventy-four thousand, four hundred seventy-four".