189672272 has 10 divisors (see below), whose sum is σ = 367490058. Its totient is φ = 94836128.

The previous prime is 189672257. The next prime is 189672277. The reversal of 189672272 is 272276981.

It can be written as a sum of positive squares in only one way, i.e., 158357056 + 31315216 = 12584^2 + 5596^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189672277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5927243 + ... + 5927274.

Almost surely, 2^189672272 is an apocalyptic number.

It is an amenable number.

189672272 is a deficient number, since it is larger than the sum of its proper divisors (177817786).

189672272 is a wasteful number, since it uses less digits than its factorization.

189672272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11854525 (or 11854519 counting only the distinct ones).

The product of its digits is 169344, while the sum is 44.

The square root of 189672272 is about 13772.1556773077. The cubic root of 189672272 is about 574.5589782714.

The spelling of 189672272 in words is "one hundred eighty-nine million, six hundred seventy-two thousand, two hundred seventy-two".