64830188 has 12 divisors (see below), whose sum is σ = 113864352. Its totient is φ = 32297520.

The previous prime is 64830187. The next prime is 64830239. The reversal of 64830188 is 88103846.

It is a super-2 number, since 2×64830188² = 8405906552230688, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (64830187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28148 + ... + 30363.

It is an arithmetic number, because the mean of its divisors is an integer number (9488696).

Almost surely, 2^64830188 is an apocalyptic number.

It is an amenable number.

64830188 is a deficient number, since it is larger than the sum of its proper divisors (49034164).

64830188 is a wasteful number, since it uses less digits than its factorization.

64830188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58792 (or 58790 counting only the distinct ones).

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

The square root of 64830188 is about 8051.7195678936. The cubic root of 64830188 is about 401.7221333348.

The spelling of 64830188 in words is "sixty-four million, eight hundred thirty thousand, one hundred eighty-eight".