189475998 has 16 divisors (see below), whose sum is σ = 379422336. Its totient is φ = 63080280.

The previous prime is 189475991. The next prime is 189476003. The reversal of 189475998 is 899574981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189475991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14248 + ... + 24123.

It is an arithmetic number, because the mean of its divisors is an integer number (23713896).

Almost surely, 2^189475998 is an apocalyptic number.

189475998 is an abundant number, since it is smaller than the sum of its proper divisors (189946338).

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

189475998 is a wasteful number, since it uses less digits than its factorization.

189475998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39199.

The product of its digits is 6531840, while the sum is 60.

The square root of 189475998 is about 13765.0280784312. The cubic root of 189475998 is about 574.3607241833.

The spelling of 189475998 in words is "one hundred eighty-nine million, four hundred seventy-five thousand, nine hundred ninety-eight".