388856982 has 16 divisors (see below), whose sum is σ = 783839232. Its totient is φ = 128598120.

The previous prime is 388856977. The next prime is 388857019. The reversal of 388856982 is 289658883.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 254394 + ... + 255917.

It is an arithmetic number, because the mean of its divisors is an integer number (48989952).

Almost surely, 2^388856982 is an apocalyptic number.

388856982 is an abundant number, since it is smaller than the sum of its proper divisors (394982250).

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

388856982 is a wasteful number, since it uses less digits than its factorization.

388856982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510443.

The product of its digits is 6635520, while the sum is 57.

The square root of 388856982 is about 19719.4569397841. The cubic root of 388856982 is about 729.8998936976.

The spelling of 388856982 in words is "three hundred eighty-eight million, eight hundred fifty-six thousand, nine hundred eighty-two".