388542975 has 12 divisors (see below), whose sum is σ = 642391176. Its totient is φ = 207222880.

The previous prime is 388542971. The next prime is 388542997. The reversal of 388542975 is 579245883.

388542975 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 388542975 - 2² = 388542971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388542971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2590212 + ... + 2590361.

It is an arithmetic number, because the mean of its divisors is an integer number (53532598).

Almost surely, 2^388542975 is an apocalyptic number.

388542975 is a deficient number, since it is larger than the sum of its proper divisors (253848201).

388542975 is a wasteful number, since it uses less digits than its factorization.

388542975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5180586 (or 5180581 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 51.

The square root of 388542975 is about 19711.4934746203. The cubic root of 388542975 is about 729.7033729488.

The spelling of 388542975 in words is "three hundred eighty-eight million, five hundred forty-two thousand, nine hundred seventy-five".