189502772 has 12 divisors (see below), whose sum is σ = 337887396. Its totient is φ = 92963520.

The previous prime is 189502769. The next prime is 189502777. The reversal of 189502772 is 277205981.

189502772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 136562596 + 52940176 = 11686^2 + 7276^2 .

It is a super-2 number, since 2×189502772² = 71822601191367968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189502777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446729 + ... + 447152.

It is an arithmetic number, because the mean of its divisors is an integer number (28157283).

Almost surely, 2^189502772 is an apocalyptic number.

It is an amenable number.

189502772 is a deficient number, since it is larger than the sum of its proper divisors (148384624).

189502772 is a wasteful number, since it uses less digits than its factorization.

189502772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893938 (or 893936 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 189502772 is about 13766.0005811419. Note that the first 3 decimals coincide. The cubic root of 189502772 is about 574.3877763516.

The spelling of 189502772 in words is "one hundred eighty-nine million, five hundred two thousand, seven hundred seventy-two".