189698418 has 48 divisors (see below), whose sum is σ = 505866816. Its totient is φ = 50029920.

The previous prime is 189698389. The next prime is 189698423. The reversal of 189698418 is 814896981.

189698418 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56268 + ... + 59543.

It is an arithmetic number, because the mean of its divisors is an integer number (10538892).

Almost surely, 2^189698418 is an apocalyptic number.

189698418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

189698418 is an abundant number, since it is smaller than the sum of its proper divisors (316168398).

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

189698418 is a wasteful number, since it uses less digits than its factorization.

189698418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115839 (or 115836 counting only the distinct ones).

The product of its digits is 995328, while the sum is 54.

The square root of 189698418 is about 13773.1048787120. The cubic root of 189698418 is about 574.5853777177.

The spelling of 189698418 in words is "one hundred eighty-nine million, six hundred ninety-eight thousand, four hundred eighteen".