388813320 has 96 divisors (see below), whose sum is σ = 1444173120. Its totient is φ = 88871040.

The previous prime is 388813301. The next prime is 388813331. The reversal of 388813320 is 23318883.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 74626 + ... + 79665.

It is an arithmetic number, because the mean of its divisors is an integer number (15043470).

Almost surely, 2^388813320 is an apocalyptic number.

388813320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

388813320 is an abundant number, since it is smaller than the sum of its proper divisors (1055359800).

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

388813320 is a wasteful number, since it uses less digits than its factorization.

388813320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154315 (or 154308 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 388813320 is about 19718.3498295370. The cubic root of 388813320 is about 729.8725742430.

The spelling of 388813320 in words is "three hundred eighty-eight million, eight hundred thirteen thousand, three hundred twenty".