188466628 has 12 divisors (see below), whose sum is σ = 376933312. Its totient is φ = 80771400.

The previous prime is 188466617. The next prime is 188466671. The reversal of 188466628 is 826664881.

188466628 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3365448 + ... + 3365503.

Almost surely, 2^188466628 is an apocalyptic number.

It is an amenable number.

188466628 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

188466628 is a wasteful number, since it uses less digits than its factorization.

188466628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6730962 (or 6730960 counting only the distinct ones).

The product of its digits is 884736, while the sum is 49.

The square root of 188466628 is about 13728.3148273923. The cubic root of 188466628 is about 573.3390028584.

The spelling of 188466628 in words is "one hundred eighty-eight million, four hundred sixty-six thousand, six hundred twenty-eight".