189688476 has 24 divisors (see below), whose sum is σ = 465902080. Its totient is φ = 59901552.

The previous prime is 189688469. The next prime is 189688501. The reversal of 189688476 is 674886981.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

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, 415756 + ... + 416211.

Almost surely, 2^189688476 is an apocalyptic number.

It is an amenable number.

189688476 is an abundant number, since it is smaller than the sum of its proper divisors (276213604).

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

189688476 is a wasteful number, since it uses less digits than its factorization.

189688476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831993 (or 831991 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 57.

The square root of 189688476 is about 13772.7439531852. The cubic root of 189688476 is about 574.5753396307.

The spelling of 189688476 in words is "one hundred eighty-nine million, six hundred eighty-eight thousand, four hundred seventy-six".