2006668 has 12 divisors (see below), whose sum is σ = 3547152. Its totient is φ = 993200.

The previous prime is 2006659. The next prime is 2006671. The reversal of 2006668 is 8666002.

It is a happy 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, 2080 + ... + 2887.

It is an arithmetic number, because the mean of its divisors is an integer number (295596).

2^2006668 is an apocalyptic number.

It is an amenable number.

2006668 is a deficient number, since it is larger than the sum of its proper divisors (1540484).

2006668 is a wasteful number, since it uses less digits than its factorization.

2006668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5072 (or 5070 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 2006668 is about 1416.5690946791. The cubic root of 2006668 is about 126.1319688950.

The spelling of 2006668 in words is "two million, six thousand, six hundred sixty-eight".