4225664 has 16 divisors (see below), whose sum is σ = 8418570. Its totient is φ = 2112768.

The previous prime is 4225651. The next prime is 4225679. The reversal of 4225664 is 4665224.

It can be written as a sum of positive squares in only one way, i.e., 4032064 + 193600 = 2008^2 + 440^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16379 + ... + 16634.

Almost surely, 2^4225664 is an apocalyptic number.

It is an amenable number.

4225664 is a deficient number, since it is larger than the sum of its proper divisors (4192906).

4225664 is an equidigital number, since it uses as much as digits as its factorization.

4225664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33027 (or 33015 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

The square root of 4225664 is about 2055.6419921767. The cubic root of 4225664 is about 161.6708247534.

The spelling of 4225664 in words is "four million, two hundred twenty-five thousand, six hundred sixty-four".