225434988 has 72 divisors (see below), whose sum is σ = 601124160. Its totient is φ = 73852560.

The previous prime is 225434987. The next prime is 225435013. The reversal of 225434988 is 889434522.

225434988 is a `hidden beast` number, since 22 + 543 + 4 + 9 + 88 = 666.

It is not an unprimeable number, because it can be changed into a prime (225434987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55383 + ... + 59313.

Almost surely, 2^225434988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225434988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300562080).

225434988 is an abundant number, since it is smaller than the sum of its proper divisors (375689172).

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

225434988 is a wasteful number, since it uses less digits than its factorization.

225434988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4009 (or 3995 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 225434988 is about 15014.4925988193. The cubic root of 225434988 is about 608.6119005589.

The spelling of 225434988 in words is "two hundred twenty-five million, four hundred thirty-four thousand, nine hundred eighty-eight".