42227766 has 96 divisors (see below), whose sum is σ = 113817600. Its totient is φ = 11041920.

The previous prime is 42227729. The next prime is 42227777. The reversal of 42227766 is 66772224.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 42227766.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 73930 + ... + 74498.

It is an arithmetic number, because the mean of its divisors is an integer number (1185600).

Almost surely, 2^42227766 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42227766, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56908800).

42227766 is an abundant number, since it is smaller than the sum of its proper divisors (71589834).

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

42227766 is a wasteful number, since it uses less digits than its factorization.

42227766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634 (or 631 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 42227766 is about 6498.2894672367. The cubic root of 42227766 is about 348.2298818013.

The spelling of 42227766 in words is "forty-two million, two hundred twenty-seven thousand, seven hundred sixty-six".