2666504 has 16 divisors (see below), whose sum is σ = 5035500. Its totient is φ = 1323712.

The previous prime is 2666491. The next prime is 2666507. The reversal of 2666504 is 4056662.

It can be written as a sum of positive squares in 2 ways, for example, as 2656900 + 9604 = 1630^2 + 98^2 .

It is a super-2 number, since 2×2666504² = 14220487164032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2666507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74 + ... + 2310.

2^2666504 is an apocalyptic number.

It is an amenable number.

2666504 is a deficient number, since it is larger than the sum of its proper divisors (2368996).

2666504 is a wasteful number, since it uses less digits than its factorization.

2666504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2392 (or 2388 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 2666504 is about 1632.9433548044. The cubic root of 2666504 is about 138.6694351436.

The spelling of 2666504 in words is "two million, six hundred sixty-six thousand, five hundred four".