225396340 has 24 divisors (see below), whose sum is σ = 509743080. Its totient is φ = 83223168.

The previous prime is 225396331. The next prime is 225396361. The reversal of 225396340 is 43693522.

It can be written as a sum of positive squares in 4 ways, for example, as 20448484 + 204947856 = 4522^2 + 14316^2 .

It is a junction number, because it is equal to n+sod(n) for n = 225396296 and 225396305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433195 + ... + 433714.

It is an arithmetic number, because the mean of its divisors is an integer number (21239295).

Almost surely, 2^225396340 is an apocalyptic number.

225396340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225396340 is an abundant number, since it is smaller than the sum of its proper divisors (284346740).

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

225396340 is a wasteful number, since it uses less digits than its factorization.

225396340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866931 (or 866929 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 225396340 is about 15013.2055204743. The cubic root of 225396340 is about 608.5771189467.

The spelling of 225396340 in words is "two hundred twenty-five million, three hundred ninety-six thousand, three hundred forty".