189844998 has 32 divisors (see below), whose sum is σ = 456771840. Its totient is φ = 51386400.

The previous prime is 189844981. The next prime is 189844999. The reversal of 189844998 is 899448981.

It is a super-2 number, since 2×189844998² = 72082246531240008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189844999) 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, 118153 + ... + 119748.

It is an arithmetic number, because the mean of its divisors is an integer number (14274120).

Almost surely, 2^189844998 is an apocalyptic number.

189844998 is an abundant number, since it is smaller than the sum of its proper divisors (266926842).

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

189844998 is a wasteful number, since it uses less digits than its factorization.

189844998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237932.

The product of its digits is 5971968, while the sum is 60.

The square root of 189844998 is about 13778.4250914246. The cubic root of 189844998 is about 574.7333336888.

The spelling of 189844998 in words is "one hundred eighty-nine million, eight hundred forty-four thousand, nine hundred ninety-eight".