202222644 has 48 divisors (see below), whose sum is σ = 510515712. Its totient is φ = 61932672.

The previous prime is 202222637. The next prime is 202222661. The reversal of 202222644 is 446222202.

It is a congruent number.

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, 31882 + ... + 37694.

It is an arithmetic number, because the mean of its divisors is an integer number (10635744).

Almost surely, 2^202222644 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 202222644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255257856).

202222644 is an abundant number, since it is smaller than the sum of its proper divisors (308293068).

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

202222644 is a wasteful number, since it uses less digits than its factorization.

202222644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6056 (or 6054 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 202222644 is about 14220.5008350620. The cubic root of 202222644 is about 586.9619219438.

Adding to 202222644 its reverse (446222202), we get a palindrome (648444846).

The spelling of 202222644 in words is "two hundred two million, two hundred twenty-two thousand, six hundred forty-four".