189418854 has 16 divisors (see below), whose sum is σ = 382516992. Its totient is φ = 62526408.

The previous prime is 189418843. The next prime is 189418921. The reversal of 189418854 is 458814981.

189418854 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 152634 + ... + 153869.

It is an arithmetic number, because the mean of its divisors is an integer number (23907312).

Almost surely, 2^189418854 is an apocalyptic number.

189418854 is an abundant number, since it is smaller than the sum of its proper divisors (193098138).

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

189418854 is a wasteful number, since it uses less digits than its factorization.

189418854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306611.

The product of its digits is 368640, while the sum is 48.

The square root of 189418854 is about 13762.9522269025. The cubic root of 189418854 is about 574.3029779611.

The spelling of 189418854 in words is "one hundred eighty-nine million, four hundred eighteen thousand, eight hundred fifty-four".