189644316 has 24 divisors (see below), whose sum is σ = 468533520. Its totient is φ = 59496192.

The previous prime is 189644297. The next prime is 189644347. The reversal of 189644316 is 613446981.

It is a super-2 number, since 2×189644316² = 71929933182215712, which contains 22 as substring.

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, 464611 + ... + 465018.

It is an arithmetic number, because the mean of its divisors is an integer number (19522230).

Almost surely, 2^189644316 is an apocalyptic number.

It is an amenable number.

189644316 is an abundant number, since it is smaller than the sum of its proper divisors (278889204).

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

189644316 is a wasteful number, since it uses less digits than its factorization.

189644316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929653 (or 929651 counting only the distinct ones).

The product of its digits is 124416, while the sum is 42.

The square root of 189644316 is about 13771.1406934938. The cubic root of 189644316 is about 574.5307485961.

The spelling of 189644316 in words is "one hundred eighty-nine million, six hundred forty-four thousand, three hundred sixteen".