189418842 has 24 divisors (see below), whose sum is σ = 411359520. Its totient is φ = 62993160.

The previous prime is 189418837. The next prime is 189418843. The reversal of 189418842 is 248814981.

189418842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (189418843) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4084 + ... + 19887.

It is an arithmetic number, because the mean of its divisors is an integer number (17139980).

Almost surely, 2^189418842 is an apocalyptic number.

189418842 is an abundant number, since it is smaller than the sum of its proper divisors (221940678).

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

189418842 is a wasteful number, since it uses less digits than its factorization.

189418842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24418 (or 24415 counting only the distinct ones).

The product of its digits is 147456, while the sum is 45.

The square root of 189418842 is about 13762.9517909495. The cubic root of 189418842 is about 574.3029658334.

It can be divided in two parts, 1894 and 18842, that added together give a 4-th power (20736 = 12⁴).

The spelling of 189418842 in words is "one hundred eighty-nine million, four hundred eighteen thousand, eight hundred forty-two".