189725652 has 72 divisors (see below), whose sum is σ = 508050816. Its totient is φ = 61881408.

The previous prime is 189725647. The next prime is 189725663. The reversal of 189725652 is 256527981.

189725652 is a `hidden beast` number, since 1 + 89 + 7 + 2 + 565 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 189725598 and 189725607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43608 + ... + 47760.

Almost surely, 2^189725652 is an apocalyptic number.

189725652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189725652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254025408).

189725652 is an abundant number, since it is smaller than the sum of its proper divisors (318325164).

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

189725652 is a wasteful number, since it uses less digits than its factorization.

189725652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4219 (or 4205 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 189725652 is about 13774.0935091933. The cubic root of 189725652 is about 574.6128731313.

The spelling of 189725652 in words is "one hundred eighty-nine million, seven hundred twenty-five thousand, six hundred fifty-two".