189418270 has 16 divisors (see below), whose sum is σ = 341117568. Its totient is φ = 75730720.

The previous prime is 189418259. The next prime is 189418279. The reversal of 189418270 is 72814981.

It is a happy number.

189418270 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 not an unprimeable number, because it can be changed into a prime (189418279) 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, 28680 + ... + 34660.

It is an arithmetic number, because the mean of its divisors is an integer number (21319848).

Almost surely, 2^189418270 is an apocalyptic number.

189418270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189418270 is a deficient number, since it is larger than the sum of its proper divisors (151699298).

189418270 is a wasteful number, since it uses less digits than its factorization.

189418270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9155.

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 189418270 is about 13762.9310105079. The cubic root of 189418270 is about 574.3023877465.

It can be divided in two parts, 1894 and 18270, that added together give a square (20164 = 142²).

The spelling of 189418270 in words is "one hundred eighty-nine million, four hundred eighteen thousand, two hundred seventy".