225404214 has 48 divisors (see below), whose sum is σ = 532283328. Its totient is φ = 63434448.

The previous prime is 225404203. The next prime is 225404219. The reversal of 225404214 is 412404522.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225404219) 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 23 ways as a sum of consecutive naturals, for example, 13977 + ... + 25419.

It is an arithmetic number, because the mean of its divisors is an integer number (11089236).

Almost surely, 2^225404214 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225404214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266141664).

225404214 is an abundant number, since it is smaller than the sum of its proper divisors (306879114).

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

225404214 is a wasteful number, since it uses less digits than its factorization.

225404214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11529 (or 11522 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 225404214 is about 15013.4677539868. The cubic root of 225404214 is about 608.5842055457.

Adding to 225404214 its reverse (412404522), we get a palindrome (637808736).

The spelling of 225404214 in words is "two hundred twenty-five million, four hundred four thousand, two hundred fourteen".