186228964 has 12 divisors (see below), whose sum is σ = 327785724. Its totient is φ = 92575904.

The previous prime is 186228961. The next prime is 186229027. The reversal of 186228964 is 469822681.

It can be written as a sum of positive squares in 2 ways, for example, as 116640000 + 69588964 = 10800^2 + 8342^2 .

It is not an unprimeable number, because it can be changed into a prime (186228961) 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, 133867 + ... + 135250.

It is an arithmetic number, because the mean of its divisors is an integer number (27315477).

Almost surely, 2^186228964 is an apocalyptic number.

It is an amenable number.

186228964 is a deficient number, since it is larger than the sum of its proper divisors (141556760).

186228964 is a wasteful number, since it uses less digits than its factorization.

186228964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269294 (or 269292 counting only the distinct ones).

The product of its digits is 331776, while the sum is 46.

The square root of 186228964 is about 13646.5733427846. The cubic root of 186228964 is about 571.0608784898.

The spelling of 186228964 in words is "one hundred eighty-six million, two hundred twenty-eight thousand, nine hundred sixty-four".