4581664 has 12 divisors (see below), whose sum is σ = 9020214. Its totient is φ = 2290816.

The previous prime is 4581659. The next prime is 4581671. The reversal of 4581664 is 4661854.

It can be written as a sum of positive squares in only one way, i.e., 4080400 + 501264 = 2020^2 + 708^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71557 + ... + 71620.

Almost surely, 2^4581664 is an apocalyptic number.

It is an amenable number.

4581664 is a deficient number, since it is larger than the sum of its proper divisors (4438550).

4581664 is a wasteful number, since it uses less digits than its factorization.

4581664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143187 (or 143179 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The square root of 4581664 is about 2140.4821886668. The cubic root of 4581664 is about 166.0890797837.

The spelling of 4581664 in words is "four million, five hundred eighty-one thousand, six hundred sixty-four".