222745524 has 48 divisors (see below), whose sum is σ = 543621120. Its totient is φ = 70852320.

The previous prime is 222745517. The next prime is 222745553. The reversal of 222745524 is 425547222.

222745524 = 3101² + 3102² + ... + 3123².

222745524 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 173517 + ... + 174795.

It is an arithmetic number, because the mean of its divisors is an integer number (11325440).

Almost surely, 2^222745524 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 222745524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271810560).

222745524 is an abundant number, since it is smaller than the sum of its proper divisors (320875596).

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

222745524 is a wasteful number, since it uses less digits than its factorization.

222745524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940 (or 1938 counting only the distinct ones).

The product of its digits is 44800, while the sum is 33.

The square root of 222745524 is about 14924.6616042040. The cubic root of 222745524 is about 606.1819427765.

The spelling of 222745524 in words is "two hundred twenty-two million, seven hundred forty-five thousand, five hundred twenty-four".