4388664 has 64 divisors (see below), whose sum is σ = 12695040. Its totient is φ = 1238400.

The previous prime is 4388651. The next prime is 4388689. The reversal of 4388664 is 4668834.

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

It is an Ulam number.

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, 25282 + ... + 25454.

It is an arithmetic number, because the mean of its divisors is an integer number (198360).

Almost surely, 2^4388664 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 4388664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6347520).

4388664 is an abundant number, since it is smaller than the sum of its proper divisors (8306376).

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

4388664 is a wasteful number, since it uses less digits than its factorization.

4388664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340 (or 336 counting only the distinct ones).

The product of its digits is 110592, while the sum is 39.

The square root of 4388664 is about 2094.9138407104. The cubic root of 4388664 is about 163.7234084590.

The spelling of 4388664 in words is "four million, three hundred eighty-eight thousand, six hundred sixty-four".