225341440 has 52 divisors (see below), whose sum is σ = 540802584. Its totient is φ = 90128384.

The previous prime is 225341401. The next prime is 225341447. The reversal of 225341440 is 44143522.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225341447) 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, 14979 + ... + 25981.

Almost surely, 2^225341440 is an apocalyptic number.

225341440 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 225341440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270401292).

225341440 is an abundant number, since it is smaller than the sum of its proper divisors (315461144).

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

225341440 is an equidigital number, since it uses as much as digits as its factorization.

225341440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11032 (or 11010 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 225341440 is about 15011.3770187815. The cubic root of 225341440 is about 608.5277043660.

Adding to 225341440 its reverse (44143522), we get a palindrome (269484962).

The spelling of 225341440 in words is "two hundred twenty-five million, three hundred forty-one thousand, four hundred forty".