388859504 has 40 divisors (see below), whose sum is σ = 825201648. Its totient is φ = 176046080.

The previous prime is 388859503. The next prime is 388859533. The reversal of 388859504 is 405958883.

It is a super-4 number, since 4×388859504⁴ (a number of 35 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388859503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40934 + ... + 49530.

Almost surely, 2^388859504 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 388859504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (412600824).

388859504 is an abundant number, since it is smaller than the sum of its proper divisors (436342144).

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

388859504 is a wasteful number, since it uses less digits than its factorization.

388859504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8873 (or 8867 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 50.

The square root of 388859504 is about 19719.5208866747. The cubic root of 388859504 is about 729.9014716587.

The spelling of 388859504 in words is "three hundred eighty-eight million, eight hundred fifty-nine thousand, five hundred four".