388940016 has 40 divisors (see below), whose sum is σ = 1006971264. Its totient is φ = 129361600.

The previous prime is 388940009. The next prime is 388940017. The reversal of 388940016 is 610049883.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388940017) 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, 13741 + ... + 31091.

Almost surely, 2^388940016 is an apocalyptic number.

It is an amenable number.

388940016 is an abundant number, since it is smaller than the sum of its proper divisors (618031248).

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

388940016 is a wasteful number, since it uses less digits than its factorization.

388940016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17829 (or 17823 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 388940016 is about 19721.5622099265. The cubic root of 388940016 is about 729.9518426980.

Adding to 388940016 its reverse (610049883), we get a palindrome (998989899).

The spelling of 388940016 in words is "three hundred eighty-eight million, nine hundred forty thousand, sixteen".