225434989 has 8 divisors (see below), whose sum is σ = 243361440. Its totient is φ = 207592176.

The previous prime is 225434987. The next prime is 225435013. The reversal of 225434989 is 989434522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225434989 - 2¹ = 225434987 is a prime.

It is a Duffinian number.

It is a congruent number.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15247 + ... + 26140.

It is an arithmetic number, because the mean of its divisors is an integer number (30420180).

Almost surely, 2^225434989 is an apocalyptic number.

It is an amenable number.

225434989 is a deficient number, since it is larger than the sum of its proper divisors (17926451).

225434989 is a wasteful number, since it uses less digits than its factorization.

225434989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41819.

The product of its digits is 622080, while the sum is 46.

The square root of 225434989 is about 15014.4926321205. The cubic root of 225434989 is about 608.6119014588.

The spelling of 225434989 in words is "two hundred twenty-five million, four hundred thirty-four thousand, nine hundred eighty-nine".