388301904 has 80 divisors (see below), whose sum is σ = 1117636800. Its totient is φ = 129078144.

The previous prime is 388301891. The next prime is 388301941. The reversal of 388301904 is 409103883.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190362 + ... + 192390.

It is an arithmetic number, because the mean of its divisors is an integer number (13970460).

Almost surely, 2^388301904 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 388301904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (558818400).

388301904 is an abundant number, since it is smaller than the sum of its proper divisors (729334896).

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

388301904 is a wasteful number, since it uses less digits than its factorization.

388301904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2489 (or 2477 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 388301904 is about 19705.3775401539. The cubic root of 388301904 is about 729.5524272132.

The spelling of 388301904 in words is "three hundred eighty-eight million, three hundred one thousand, nine hundred four".