4022666 has 4 divisors (see below), whose sum is σ = 6034002. Its totient is φ = 2011332.

The previous prime is 4022663. The next prime is 4022671. The reversal of 4022666 is 6662204.

4022666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2512225 + 1510441 = 1585^2 + 1229^2 .

It is not an unprimeable number, because it can be changed into a prime (4022663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005665 + ... + 1005668.

Almost surely, 2^4022666 is an apocalyptic number.

4022666 is a deficient number, since it is larger than the sum of its proper divisors (2011336).

4022666 is a wasteful number, since it uses less digits than its factorization.

4022666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011335.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 4022666 is about 2005.6584953576. The cubic root of 4022666 is about 159.0393742393.

The spelling of 4022666 in words is "four million, twenty-two thousand, six hundred sixty-six".