388885000 has 160 divisors (see below), whose sum is σ = 1070657280. Its totient is φ = 129600000.

The previous prime is 388884967. The next prime is 388885019. The reversal of 388885000 is 588883.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1434865 + ... + 1435135.

It is an arithmetic number, because the mean of its divisors is an integer number (6691608).

Almost surely, 2^388885000 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 388885000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (535328640).

388885000 is an abundant number, since it is smaller than the sum of its proper divisors (681772280).

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

388885000 is a wasteful number, since it uses less digits than its factorization.

388885000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 326 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 40.

The square root of 388885000 is about 19720.1673420892. The cubic root of 388885000 is about 729.9174235737.

It can be divided in two parts, 3888 and 85000, that added together give a palindrome (88888).

The spelling of 388885000 in words is "three hundred eighty-eight million, eight hundred eighty-five thousand".