225130240 has 72 divisors (see below), whose sum is σ = 567700560. Its totient is φ = 85303296.

The previous prime is 225130231. The next prime is 225130261. The reversal of 225130240 is 42031522.

225130240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19692 + ... + 28948.

It is an arithmetic number, because the mean of its divisors is an integer number (7884730).

Almost surely, 2^225130240 is an apocalyptic number.

225130240 is a gapful number since it is divisible by the number (20) 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 225130240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283850280).

225130240 is an abundant number, since it is smaller than the sum of its proper divisors (342570320).

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

225130240 is an equidigital number, since it uses as much as digits as its factorization.

225130240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9297 (or 9283 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 225130240 is about 15004.3407052759. The cubic root of 225130240 is about 608.3375318824.

Adding to 225130240 its reverse (42031522), we get a palindrome (267161762).

The spelling of 225130240 in words is "two hundred twenty-five million, one hundred thirty thousand, two hundred forty".