225223440342 has 32 divisors (see below), whose sum is σ = 455313388032. Its totient is φ = 74267610144.

The previous prime is 225223440331. The next prime is 225223440347. The reversal of 225223440342 is 243044322522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225223440347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312798 + ... + 740465.

It is an arithmetic number, because the mean of its divisors is an integer number (14228543376).

Almost surely, 2^225223440342 is an apocalyptic number.

225223440342 is an abundant number, since it is smaller than the sum of its proper divisors (230089947690).

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

225223440342 is a wasteful number, since it uses less digits than its factorization.

225223440342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053652.

The product of its (nonzero) digits is 92160, while the sum is 33.

Adding to 225223440342 its reverse (243044322522), we get a palindrome (468267762864).

The spelling of 225223440342 in words is "two hundred twenty-five billion, two hundred twenty-three million, four hundred forty thousand, three hundred forty-two".