4320664 has 16 divisors (see below), whose sum is σ = 8125200. Its totient is φ = 2153952.

The previous prime is 4320643. The next prime is 4320689. The reversal of 4320664 is 4660234.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3342 + ... + 4450.

It is an arithmetic number, because the mean of its divisors is an integer number (507825).

Almost surely, 2^4320664 is an apocalyptic number.

It is an amenable number.

4320664 is a deficient number, since it is larger than the sum of its proper divisors (3804536).

4320664 is a wasteful number, since it uses less digits than its factorization.

4320664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1602 (or 1598 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 4320664 is about 2078.6206965197. The cubic root of 4320664 is about 162.8734008890.

Adding to 4320664 its reverse (4660234), we get a palindrome (8980898).

The spelling of 4320664 in words is "four million, three hundred twenty thousand, six hundred sixty-four".