388338850 has 12 divisors (see below), whose sum is σ = 722310354. Its totient is φ = 155335520.

The previous prime is 388338817. The next prime is 388338857. The reversal of 388338850 is 58833883.

It can be written as a sum of positive squares in 3 ways, for example, as 172160641 + 216178209 = 13121^2 + 14703^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 388338850.

It is not an unprimeable number, because it can be changed into a prime (388338857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3883339 + ... + 3883438.

Almost surely, 2^388338850 is an apocalyptic number.

388338850 is a deficient number, since it is larger than the sum of its proper divisors (333971504).

388338850 is a wasteful number, since it uses less digits than its factorization.

388338850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7766789 (or 7766784 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 46.

The square root of 388338850 is about 19706.3149776918. The cubic root of 388338850 is about 729.5755648705.

The spelling of 388338850 in words is "three hundred eighty-eight million, three hundred thirty-eight thousand, eight hundred fifty".