388942158 has 64 divisors (see below), whose sum is σ = 865188864. Its totient is φ = 116547200.

The previous prime is 388942123. The next prime is 388942207. The reversal of 388942158 is 851249883.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 902203 + ... + 902633.

It is an arithmetic number, because the mean of its divisors is an integer number (13518576).

Almost surely, 2^388942158 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 388942158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (432594432).

388942158 is an abundant number, since it is smaller than the sum of its proper divisors (476246706).

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

388942158 is a wasteful number, since it uses less digits than its factorization.

388942158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582 (or 560 counting only the distinct ones).

The product of its digits is 552960, while the sum is 48.

The square root of 388942158 is about 19721.6165158944. The cubic root of 388942158 is about 729.9531827109.

The spelling of 388942158 in words is "three hundred eighty-eight million, nine hundred forty-two thousand, one hundred fifty-eight".