188413328 has 10 divisors (see below), whose sum is σ = 365050854. Its totient is φ = 94206656.

The previous prime is 188413321. The next prime is 188413333. The reversal of 188413328 is 823314881.

It can be written as a sum of positive squares in only one way, i.e., 188018944 + 394384 = 13712^2 + 628^2 .

It is a junction number, because it is equal to n+sod(n) for n = 188413291 and 188413300.

It is not an unprimeable number, because it can be changed into a prime (188413321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5887901 + ... + 5887932.

Almost surely, 2^188413328 is an apocalyptic number.

It is an amenable number.

188413328 is a deficient number, since it is larger than the sum of its proper divisors (176637526).

188413328 is a wasteful number, since it uses less digits than its factorization.

188413328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11775841 (or 11775835 counting only the distinct ones).

The product of its digits is 36864, while the sum is 38.

The square root of 188413328 is about 13726.3734467630. The cubic root of 188413328 is about 573.2849493452.

The spelling of 188413328 in words is "one hundred eighty-eight million, four hundred thirteen thousand, three hundred twenty-eight".