388888850 has 48 divisors (see below), whose sum is σ = 830304000. Its totient is φ = 132746880.

The previous prime is 388888771. The next prime is 388888867. The reversal of 388888850 is 58888883.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81326 + ... + 85974.

It is an arithmetic number, because the mean of its divisors is an integer number (17298000).

Almost surely, 2^388888850 is an apocalyptic number.

388888850 is an abundant number, since it is smaller than the sum of its proper divisors (441415150).

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

388888850 is a wasteful number, since it uses less digits than its factorization.

388888850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4907 (or 4902 counting only the distinct ones).

The product of its (nonzero) digits is 3932160, while the sum is 56.

The square root of 388888850 is about 19720.2649576521. The cubic root of 388888850 is about 729.9198323173.

It can be divided in two parts, 38 and 8888850, that added together give a palindrome (8888888).

The spelling of 388888850 in words is "three hundred eighty-eight million, eight hundred eighty-eight thousand, eight hundred fifty".