2222856 has 64 divisors (see below), whose sum is σ = 6350400. Its totient is φ = 720000.

The previous prime is 2222839. The next prime is 2222893. The reversal of 2222856 is 6582222.

2222856 = 124² + 125² + ... + 204².

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8731 + ... + 8981.

It is an arithmetic number, because the mean of its divisors is an integer number (99225).

2^2222856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2222856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3175200).

2222856 is an abundant number, since it is smaller than the sum of its proper divisors (4127544).

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

2222856 is a wasteful number, since it uses less digits than its factorization.

2222856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307 (or 297 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 2222856 is about 1490.9245453744. The cubic root of 2222856 is about 130.5079926403.

2222856 divided by its sum of digits (27) gives a palindrome (82328).

The spelling of 2222856 in words is "two million, two hundred twenty-two thousand, eight hundred fifty-six".