225022240 has 24 divisors (see below), whose sum is σ = 531615420. Its totient is φ = 90008832.

The previous prime is 225022219. The next prime is 225022241. The reversal of 225022240 is 42220522.

It can be written as a sum of positive squares in 2 ways, for example, as 214446736 + 10575504 = 14644^2 + 3252^2 .

It is not an unprimeable number, because it can be changed into a prime (225022241) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 703035 + ... + 703354.

Almost surely, 2^225022240 is an apocalyptic number.

225022240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225022240 is an abundant number, since it is smaller than the sum of its proper divisors (306593180).

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

225022240 is a wasteful number, since it uses less digits than its factorization.

225022240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406404 (or 1406396 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 225022240 is about 15000.7413150151. The cubic root of 225022240 is about 608.2402386263.

Adding to 225022240 its reverse (42220522), we get a palindrome (267242762).

It can be divided in two parts, 22502 and 2240, that added together give a palindrome (24742).

The spelling of 225022240 in words is "two hundred twenty-five million, twenty-two thousand, two hundred forty".