388694982 has 64 divisors (see below), whose sum is σ = 860590080. Its totient is φ = 116290944.

The previous prime is 388694899. The next prime is 388694983. The reversal of 388694982 is 289496883.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388694983) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 839283 + ... + 839745.

It is an arithmetic number, because the mean of its divisors is an integer number (13446720).

Almost surely, 2^388694982 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 388694982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (430295040).

388694982 is an abundant number, since it is smaller than the sum of its proper divisors (471895098).

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

388694982 is a wasteful number, since it uses less digits than its factorization.

388694982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757.

The product of its digits is 5971968, while the sum is 57.

The square root of 388694982 is about 19715.3488936919. The cubic root of 388694982 is about 729.7985194886.

The spelling of 388694982 in words is "three hundred eighty-eight million, six hundred ninety-four thousand, nine hundred eighty-two".