388837242 has 24 divisors (see below), whose sum is σ = 886822560. Its totient is φ = 122790600.

The previous prime is 388837237. The next prime is 388837259. The reversal of 388837242 is 242738883.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 568134 + ... + 568817.

It is an arithmetic number, because the mean of its divisors is an integer number (36950940).

Almost surely, 2^388837242 is an apocalyptic number.

388837242 is an abundant number, since it is smaller than the sum of its proper divisors (497985318).

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

388837242 is a wasteful number, since it uses less digits than its factorization.

388837242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136978 (or 1136975 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 388837242 is about 19718.9564125488. The cubic root of 388837242 is about 729.8875425691.

The spelling of 388837242 in words is "three hundred eighty-eight million, eight hundred thirty-seven thousand, two hundred forty-two".