189529956 has 240 divisors, whose sum is σ = 632282112. Its totient is φ = 48081600.

The previous prime is 189529943. The next prime is 189529969. The reversal of 189529956 is 659925981.

It is an interprime number because it is at equal distance from previous prime (189529943) and next prime (189529969).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1771255 + ... + 1771361.

Almost surely, 2^189529956 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 189529956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316141056).

189529956 is an abundant number, since it is smaller than the sum of its proper divisors (442752156).

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

189529956 is a wasteful number, since it uses less digits than its factorization.

189529956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 201 counting only the distinct ones).

The product of its digits is 1749600, while the sum is 54.

The square root of 189529956 is about 13766.9879058565. The cubic root of 189529956 is about 574.4152401729.

The spelling of 189529956 in words is "one hundred eighty-nine million, five hundred twenty-nine thousand, nine hundred fifty-six".