189447572 has 12 divisors (see below), whose sum is σ = 342228096. Its totient is φ = 91668120.

The previous prime is 189447569. The next prime is 189447581. The reversal of 189447572 is 275744981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 763778 + ... + 764025.

It is an arithmetic number, because the mean of its divisors is an integer number (28519008).

Almost surely, 2^189447572 is an apocalyptic number.

It is an amenable number.

189447572 is a deficient number, since it is larger than the sum of its proper divisors (152780524).

189447572 is a wasteful number, since it uses less digits than its factorization.

189447572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1527838 (or 1527836 counting only the distinct ones).

The product of its digits is 564480, while the sum is 47.

The square root of 189447572 is about 13763.9954954948. The cubic root of 189447572 is about 574.3320000623.

The spelling of 189447572 in words is "one hundred eighty-nine million, four hundred forty-seven thousand, five hundred seventy-two".