388868722 has 8 divisors (see below), whose sum is σ = 636330672. Its totient is φ = 176758500.

The previous prime is 388868707. The next prime is 388868759. The reversal of 388868722 is 227868883.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 388868722.

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, 8837904 + ... + 8837947.

It is an arithmetic number, because the mean of its divisors is an integer number (79541334).

Almost surely, 2^388868722 is an apocalyptic number.

388868722 is a deficient number, since it is larger than the sum of its proper divisors (247461950).

388868722 is a wasteful number, since it uses less digits than its factorization.

388868722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17675864.

The product of its digits is 2064384, while the sum is 52.

The square root of 388868722 is about 19719.7546130777. The cubic root of 388868722 is about 729.9072391047.

The spelling of 388868722 in words is "three hundred eighty-eight million, eight hundred sixty-eight thousand, seven hundred twenty-two".