225441440 has 48 divisors (see below), whose sum is σ = 608694912. Its totient is φ = 77293824.

The previous prime is 225441427. The next prime is 225441443. The reversal of 225441440 is 44144522.

It is not an unprimeable number, because it can be changed into a prime (225441443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99524 + ... + 101763.

It is an arithmetic number, because the mean of its divisors is an integer number (12681144).

Almost surely, 2^225441440 is an apocalyptic number.

225441440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225441440 is an abundant number, since it is smaller than the sum of its proper divisors (383253472).

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

225441440 is a wasteful number, since it uses less digits than its factorization.

225441440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201309 (or 201301 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 225441440 is about 15014.7074563576. The cubic root of 225441440 is about 608.6177067066.

Adding to 225441440 its reverse (44144522), we get a palindrome (269585962).

The spelling of 225441440 in words is "two hundred twenty-five million, four hundred forty-one thousand, four hundred forty".