189194694 has 64 divisors (see below), whose sum is σ = 418037760. Its totient is φ = 56730240.

The previous prime is 189194689. The next prime is 189194701. The reversal of 189194694 is 496491981.

189194694 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 31 ways as a sum of consecutive naturals, for example, 703192 + ... + 703460.

It is an arithmetic number, because the mean of its divisors is an integer number (6531840).

Almost surely, 2^189194694 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189194694, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209018880).

189194694 is an abundant number, since it is smaller than the sum of its proper divisors (228843066).

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

189194694 is a wasteful number, since it uses less digits than its factorization.

189194694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485.

The product of its digits is 559872, while the sum is 51.

The square root of 189194694 is about 13754.8062145564. The cubic root of 189194694 is about 574.0763434091.

The spelling of 189194694 in words is "one hundred eighty-nine million, one hundred ninety-four thousand, six hundred ninety-four".