189844772 has 24 divisors (see below), whose sum is σ = 363854400. Its totient is φ = 86134176.

The previous prime is 189844771. The next prime is 189844777. The reversal of 189844772 is 277448981.

It is a self number, because there is not a number n which added to its sum of digits gives 189844772.

It is not an unprimeable number, because it can be changed into a prime (189844771) 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, 27872 + ... + 34007.

It is an arithmetic number, because the mean of its divisors is an integer number (15160600).

Almost surely, 2^189844772 is an apocalyptic number.

It is an amenable number.

189844772 is a deficient number, since it is larger than the sum of its proper divisors (174009628).

189844772 is a wasteful number, since it uses less digits than its factorization.

189844772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61955 (or 61953 counting only the distinct ones).

The product of its digits is 903168, while the sum is 50.

The square root of 189844772 is about 13778.4168901946. The cubic root of 189844772 is about 574.7331056260.

The spelling of 189844772 in words is "one hundred eighty-nine million, eight hundred forty-four thousand, seven hundred seventy-two".