225866418 has 32 divisors (see below), whose sum is σ = 456580800. Its totient is φ = 74485440.

The previous prime is 225866387. The next prime is 225866429. The reversal of 225866418 is 814668522.

It is a self number, because there is not a number n which added to its sum of digits gives 225866418.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 417228 + ... + 417768.

It is an arithmetic number, because the mean of its divisors is an integer number (14268150).

Almost surely, 2^225866418 is an apocalyptic number.

225866418 is an abundant number, since it is smaller than the sum of its proper divisors (230714382).

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

225866418 is a wasteful number, since it uses less digits than its factorization.

225866418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162.

The product of its digits is 184320, while the sum is 42.

The square root of 225866418 is about 15028.8528504341. The cubic root of 225866418 is about 608.9999002375. Note that the first 4 decimals are identical.

The spelling of 225866418 in words is "two hundred twenty-five million, eight hundred sixty-six thousand, four hundred eighteen".