189564752 has 40 divisors (see below), whose sum is σ = 408307200. Its totient is φ = 84666240.

The previous prime is 189564751. The next prime is 189564787. The reversal of 189564752 is 257465981.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 189564697 and 189564706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189564751) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8252 + ... + 21147.

It is an arithmetic number, because the mean of its divisors is an integer number (10207680).

Almost surely, 2^189564752 is an apocalyptic number.

It is an amenable number.

189564752 is an abundant number, since it is smaller than the sum of its proper divisors (218742448).

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

189564752 is a wasteful number, since it uses less digits than its factorization.

189564752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29451 (or 29445 counting only the distinct ones).

The product of its digits is 604800, while the sum is 47.

The square root of 189564752 is about 13768.2515956094. The cubic root of 189564752 is about 574.4503905172.

The spelling of 189564752 in words is "one hundred eighty-nine million, five hundred sixty-four thousand, seven hundred fifty-two".