388427312 has 120 divisors (see below), whose sum is σ = 984374496. Its totient is φ = 146893824.

The previous prime is 388427309. The next prime is 388427323. The reversal of 388427312 is 213724883.

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, 233588 + ... + 235244.

Almost surely, 2^388427312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 388427312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (492187248).

388427312 is an abundant number, since it is smaller than the sum of its proper divisors (595947184).

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

388427312 is a wasteful number, since it uses less digits than its factorization.

388427312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715 (or 1702 counting only the distinct ones).

The product of its digits is 64512, while the sum is 38.

The square root of 388427312 is about 19708.5593588167. The cubic root of 388427312 is about 729.6309587734.

The spelling of 388427312 in words is "three hundred eighty-eight million, four hundred twenty-seven thousand, three hundred twelve".