388355936 has 96 divisors (see below), whose sum is σ = 828727200. Its totient is φ = 178769920.

The previous prime is 388355917. The next prime is 388355993. The reversal of 388355936 is 639553883.

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, 2244746 + ... + 2244918.

It is an arithmetic number, because the mean of its divisors is an integer number (8632575).

Almost surely, 2^388355936 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 388355936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (414363600).

388355936 is an abundant number, since it is smaller than the sum of its proper divisors (440371264).

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

388355936 is a wasteful number, since it uses less digits than its factorization.

388355936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312 (or 304 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 50.

The square root of 388355936 is about 19706.7484887792. The cubic root of 388355936 is about 729.5862645857.

The spelling of 388355936 in words is "three hundred eighty-eight million, three hundred fifty-five thousand, nine hundred thirty-six".