388337320 has 64 divisors (see below), whose sum is σ = 1001318400. Its totient is φ = 132779520.

The previous prime is 388337263. The next prime is 388337321. The reversal of 388337320 is 23733883.

It is a self number, because there is not a number n which added to its sum of digits gives 388337320.

It is not an unprimeable number, because it can be changed into a prime (388337321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112825 + ... + 116215.

It is an arithmetic number, because the mean of its divisors is an integer number (15645600).

Almost surely, 2^388337320 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 388337320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (500659200).

388337320 is an abundant number, since it is smaller than the sum of its proper divisors (612981080).

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

388337320 is a wasteful number, since it uses less digits than its factorization.

388337320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3818 (or 3814 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 388337320 is about 19706.2761576103. The cubic root of 388337320 is about 729.5746067279.

The spelling of 388337320 in words is "three hundred eighty-eight million, three hundred thirty-seven thousand, three hundred twenty".