4012666 has 8 divisors (see below), whose sum is σ = 6878880. Its totient is φ = 1719708.

The previous prime is 4012639. The next prime is 4012669. The reversal of 4012666 is 6662104.

It is a happy number.

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

It is a super-2 number, since 2×4012666² = 32202976855112, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4012666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4012669) 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, 143296 + ... + 143323.

It is an arithmetic number, because the mean of its divisors is an integer number (859860).

Almost surely, 2^4012666 is an apocalyptic number.

4012666 is a deficient number, since it is larger than the sum of its proper divisors (2866214).

4012666 is a wasteful number, since it uses less digits than its factorization.

4012666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286628.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 4012666 is about 2003.1639972803. The cubic root of 4012666 is about 158.9074788391.

The spelling of 4012666 in words is "four million, twelve thousand, six hundred sixty-six".