189295644 has 36 divisors (see below), whose sum is σ = 457470104. Its totient is φ = 60919488.

The previous prime is 189295609. The next prime is 189295657. The reversal of 189295644 is 446592981.

It is a junction number, because it is equal to n+sod(n) for n = 189295593 and 189295602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 714 + ... + 19470.

Almost surely, 2^189295644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189295644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228735052).

189295644 is an abundant number, since it is smaller than the sum of its proper divisors (268174460).

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

189295644 is a wasteful number, since it uses less digits than its factorization.

189295644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18822 (or 18791 counting only the distinct ones).

The product of its digits is 622080, while the sum is 48.

The square root of 189295644 is about 13758.4753515787. The cubic root of 189295644 is about 574.1784299621.

The spelling of 189295644 in words is "one hundred eighty-nine million, two hundred ninety-five thousand, six hundred forty-four".