388981068 has 48 divisors (see below), whose sum is σ = 1038261504. Its totient is φ = 111032640.

The previous prime is 388981049. The next prime is 388981123. The reversal of 388981068 is 860189883.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 388981068.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150846 + ... + 153402.

It is an arithmetic number, because the mean of its divisors is an integer number (21630448).

Almost surely, 2^388981068 is an apocalyptic number.

It is an amenable number.

388981068 is an abundant number, since it is smaller than the sum of its proper divisors (649280436).

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

388981068 is a wasteful number, since it uses less digits than its factorization.

388981068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4382 (or 4380 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 51.

The square root of 388981068 is about 19722.6029722245. The cubic root of 388981068 is about 729.9775235464.

The spelling of 388981068 in words is "three hundred eighty-eight million, nine hundred eighty-one thousand, sixty-eight".