2445222 has 64 divisors (see below), whose sum is σ = 5806080. Its totient is φ = 680064.

The previous prime is 2445221. The next prime is 2445241. The reversal of 2445222 is 2225442.

It is a super-2 number, since 2×2445222² = 11958221258568, which contains 22 as substring.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2445221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52003 + ... + 52049.

It is an arithmetic number, because the mean of its divisors is an integer number (90720).

2^2445222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2445222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2903040).

2445222 is an abundant number, since it is smaller than the sum of its proper divisors (3360858).

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

2445222 is a wasteful number, since it uses less digits than its factorization.

2445222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117.

The product of its digits is 1280, while the sum is 21.

The square root of 2445222 is about 1563.7205632721. The cubic root of 2445222 is about 134.7222823034.

The spelling of 2445222 in words is "two million, four hundred forty-five thousand, two hundred twenty-two".