2225286 has 72 divisors (see below), whose sum is σ = 5957640. Its totient is φ = 613872.

The previous prime is 2225269. The next prime is 2225323. The reversal of 2225286 is 6825222.

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

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 35 ways as a sum of consecutive naturals, for example, 76720 + ... + 76748.

It is an arithmetic number, because the mean of its divisors is an integer number (82745).

2^2225286 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2225286, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2978820).

2225286 is an abundant number, since it is smaller than the sum of its proper divisors (3732354).

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

2225286 is a wasteful number, since it uses less digits than its factorization.

2225286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83 (or 41 counting only the distinct ones).

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

The square root of 2225286 is about 1491.7392533550. The cubic root of 2225286 is about 130.5555319216. Note that the first 4 decimals are identical.

The spelling of 2225286 in words is "two million, two hundred twenty-five thousand, two hundred eighty-six".