388968664 has 24 divisors (see below), whose sum is σ = 848389140. Its totient is φ = 166700688.

The previous prime is 388968641. The next prime is 388968667. The reversal of 388968664 is 466869883.

It is a junction number, because it is equal to n+sod(n) for n = 388968599 and 388968608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388968667) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 495742 + ... + 496525.

Almost surely, 2^388968664 is an apocalyptic number.

It is an amenable number.

388968664 is an abundant number, since it is smaller than the sum of its proper divisors (459420476).

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

388968664 is a wasteful number, since it uses less digits than its factorization.

388968664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992287 (or 992276 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 58.

The square root of 388968664 is about 19722.2885081828. The cubic root of 388968664 is about 729.9697641821.

The spelling of 388968664 in words is "three hundred eighty-eight million, nine hundred sixty-eight thousand, six hundred sixty-four".