388868382 has 48 divisors (see below), whose sum is σ = 972477792. Its totient is φ = 110001600.

The previous prime is 388868377. The next prime is 388868407. The reversal of 388868382 is 283868883.

It is a congruent 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, 2553 + ... + 28004.

It is an arithmetic number, because the mean of its divisors is an integer number (20259954).

Almost surely, 2^388868382 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 388868382, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (486238896).

388868382 is an abundant number, since it is smaller than the sum of its proper divisors (583609410).

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

388868382 is a wasteful number, since it uses less digits than its factorization.

388868382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30673 (or 30670 counting only the distinct ones).

The product of its digits is 3538944, while the sum is 54.

The square root of 388868382 is about 19719.7459922789. The cubic root of 388868382 is about 729.9070263778.

The spelling of 388868382 in words is "three hundred eighty-eight million, eight hundred sixty-eight thousand, three hundred eighty-two".