2405668 has 12 divisors (see below), whose sum is σ = 4251520. Its totient is φ = 1190952.

The previous prime is 2405651. The next prime is 2405677. The reversal of 2405668 is 8665042.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

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, 2508 + ... + 3331.

2^2405668 is an apocalyptic number.

It is an amenable number.

2405668 is a deficient number, since it is larger than the sum of its proper divisors (1845852).

2405668 is a wasteful number, since it uses less digits than its factorization.

2405668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5946 (or 5944 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 2405668 is about 1551.0215988180. The cubic root of 2405668 is about 133.9919056520.

The spelling of 2405668 in words is "two million, four hundred five thousand, six hundred sixty-eight".