388663464 has 64 divisors (see below), whose sum is σ = 1114554240. Its totient is φ = 110638080.

The previous prime is 388663459. The next prime is 388663493. The reversal of 388663464 is 464366883.

It is a nude number because it is divisible by every one of its digits.

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, 43092 + ... + 51324.

It is an arithmetic number, because the mean of its divisors is an integer number (17414910).

Almost surely, 2^388663464 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 388663464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (557277120).

388663464 is an abundant number, since it is smaller than the sum of its proper divisors (725890776).

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

388663464 is a wasteful number, since it uses less digits than its factorization.

388663464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8530 (or 8526 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 48.

The square root of 388663464 is about 19714.5495510296. The cubic root of 388663464 is about 729.7787933001.

The spelling of 388663464 in words is "three hundred eighty-eight million, six hundred sixty-three thousand, four hundred sixty-four".