4022766 has 36 divisors (see below), whose sum is σ = 9585576. Its totient is φ = 1218360.

The previous prime is 4022749. The next prime is 4022773. The reversal of 4022766 is 6672204.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1255 + ... + 3101.

It is an arithmetic number, because the mean of its divisors is an integer number (266266).

Almost surely, 2^4022766 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4022766, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4792788).

4022766 is an abundant number, since it is smaller than the sum of its proper divisors (5562810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4022766 is a wasteful number, since it uses less digits than its factorization.

4022766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1877 (or 1863 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 4022766 is about 2005.6834246710. The cubic root of 4022766 is about 159.0406920888.

The spelling of 4022766 in words is "four million, twenty-two thousand, seven hundred sixty-six".