2290664 has 8 divisors (see below), whose sum is σ = 4295010. Its totient is φ = 1145328.

The previous prime is 2290649. The next prime is 2290703. The reversal of 2290664 is 4660922.

It can be written as a sum of positive squares in only one way, i.e., 1716100 + 574564 = 1310^2 + 758^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143159 + ... + 143174.

2^2290664 is an apocalyptic number.

It is an amenable number.

2290664 is a deficient number, since it is larger than the sum of its proper divisors (2004346).

2290664 is a wasteful number, since it uses less digits than its factorization.

2290664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286339 (or 286335 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 2290664 is about 1513.4939709163. The cubic root of 2290664 is about 131.8217674087.

The spelling of 2290664 in words is "two million, two hundred ninety thousand, six hundred sixty-four".