2668646 has 8 divisors (see below), whose sum is σ = 4010040. Its totient is φ = 1331968.

The previous prime is 2668639. The next prime is 2668663. The reversal of 2668646 is 6468662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1190 + ... + 2598.

It is an arithmetic number, because the mean of its divisors is an integer number (501255).

2^2668646 is an apocalyptic number.

2668646 is a deficient number, since it is larger than the sum of its proper divisors (1341394).

2668646 is a wasteful number, since it uses less digits than its factorization.

2668646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2358.

The product of its digits is 82944, while the sum is 38.

The square root of 2668646 is about 1633.5990940252. The cubic root of 2668646 is about 138.7065562119.

The spelling of 2668646 in words is "two million, six hundred sixty-eight thousand, six hundred forty-six".