225227400 has 96 divisors (see below), whose sum is σ = 720787200. Its totient is φ = 58118400.

The previous prime is 225227371. The next prime is 225227413. The reversal of 225227400 is 4722522.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 23 ways as a sum of consecutive naturals, for example, 12546 + ... + 24654.

It is an arithmetic number, because the mean of its divisors is an integer number (7508200).

Almost surely, 2^225227400 is an apocalyptic number.

225227400 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 225227400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (360393600).

225227400 is an abundant number, since it is smaller than the sum of its proper divisors (495559800).

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

225227400 is a wasteful number, since it uses less digits than its factorization.

225227400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12159 (or 12150 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 225227400 is about 15007.5780857539. The cubic root of 225227400 is about 608.4250331939.

Adding to 225227400 its reverse (4722522), we get a palindrome (229949922).

The spelling of 225227400 in words is "two hundred twenty-five million, two hundred twenty-seven thousand, four hundred".