2636668 has 12 divisors (see below), whose sum is σ = 4857160. Its totient is φ = 1248912.

The previous prime is 2636663. The next prime is 2636671. The reversal of 2636668 is 8666362.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2636663) 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, 17271 + ... + 17422.

2^2636668 is an apocalyptic number.

It is an amenable number.

2636668 is a deficient number, since it is larger than the sum of its proper divisors (2220492).

2636668 is a wasteful number, since it uses less digits than its factorization.

2636668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34716 (or 34714 counting only the distinct ones).

The product of its digits is 62208, while the sum is 37.

The square root of 2636668 is about 1623.7820050733. The cubic root of 2636668 is about 138.1502948426.

The spelling of 2636668 in words is "two million, six hundred thirty-six thousand, six hundred sixty-eight".