222700752 has 140 divisors (see below), whose sum is σ = 659634244. Its totient is φ = 72783360.

The previous prime is 222700727. The next prime is 222700787. The reversal of 222700752 is 257007222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3779136 + 218921616 = 1944^2 + 14796^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 711348 + ... + 711660.

Almost surely, 2^222700752 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 222700752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329817122).

222700752 is an abundant number, since it is smaller than the sum of its proper divisors (436933492).

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

222700752 is an equidigital number, since it uses as much as digits as its factorization.

222700752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400 (or 379 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 222700752 is about 14923.1615953189. The cubic root of 222700752 is about 606.1413257291.

Adding to 222700752 its reverse (257007222), we get a palindrome (479707974).

The spelling of 222700752 in words is "two hundred twenty-two million, seven hundred thousand, seven hundred fifty-two".