186340972 has 6 divisors (see below), whose sum is σ = 326096708. Its totient is φ = 93170484.

The previous prime is 186340967. The next prime is 186340993. The reversal of 186340972 is 279043681.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23292618 + ... + 23292625.

Almost surely, 2^186340972 is an apocalyptic number.

It is an amenable number.

186340972 is a deficient number, since it is larger than the sum of its proper divisors (139755736).

186340972 is a wasteful number, since it uses less digits than its factorization.

186340972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46585247 (or 46585245 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 186340972 is about 13650.6766132672. The cubic root of 186340972 is about 571.1753443354.

The spelling of 186340972 in words is "one hundred eighty-six million, three hundred forty thousand, nine hundred seventy-two".