222242544 has 120 divisors (see below), whose sum is σ = 677523600. Its totient is φ = 67737600.

The previous prime is 222242467. The next prime is 222242593. The reversal of 222242544 is 445242222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77944 + ... + 80744.

It is an arithmetic number, because the mean of its divisors is an integer number (5646030).

Almost surely, 2^222242544 is an apocalyptic number.

222242544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222242544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338761800).

222242544 is an abundant number, since it is smaller than the sum of its proper divisors (455281056).

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

222242544 is a wasteful number, since it uses less digits than its factorization.

222242544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2863 (or 2854 counting only the distinct ones).

The product of its digits is 10240, while the sum is 27.

The square root of 222242544 is about 14907.8014475643. The cubic root of 222242544 is about 605.7253272750.

Adding to 222242544 its reverse (445242222), we get a palindrome (667484766).

The spelling of 222242544 in words is "two hundred twenty-two million, two hundred forty-two thousand, five hundred forty-four".