388041312 has 24 divisors (see below), whose sum is σ = 1018608696. Its totient is φ = 129347072.

The previous prime is 388041307. The next prime is 388041323. The reversal of 388041312 is 213140883.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 388041312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2020953 + ... + 2021144.

It is an arithmetic number, because the mean of its divisors is an integer number (42442029).

Almost surely, 2^388041312 is an apocalyptic number.

388041312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

388041312 is an abundant number, since it is smaller than the sum of its proper divisors (630567384).

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

388041312 is a wasteful number, since it uses less digits than its factorization.

388041312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4042110 (or 4042102 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 388041312 is about 19698.7642251995. The cubic root of 388041312 is about 729.3891881894.

The spelling of 388041312 in words is "three hundred eighty-eight million, forty-one thousand, three hundred twelve".