4331664 has 80 divisors (see below), whose sum is σ = 12816640. Its totient is φ = 1399680.

The previous prime is 4331653. The next prime is 4331683. The reversal of 4331664 is 4661334.

It is a Harshad number since it is a multiple of its sum of digits (27).

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

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, 15849 + ... + 16119.

It is an arithmetic number, because the mean of its divisors is an integer number (160208).

Almost surely, 2^4331664 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 4331664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6408320).

4331664 is an abundant number, since it is smaller than the sum of its proper divisors (8484976).

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

4331664 is a wasteful number, since it uses less digits than its factorization.

4331664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325 (or 313 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 4331664 is about 2081.2649999459. The cubic root of 4331664 is about 163.0115038238.

Adding to 4331664 its reverse (4661334), we get a palindrome (8992998).

The spelling of 4331664 in words is "four million, three hundred thirty-one thousand, six hundred sixty-four".