225402340 has 12 divisors (see below), whose sum is σ = 473344956. Its totient is φ = 90160928.

The previous prime is 225402329. The next prime is 225402391. The reversal of 225402340 is 43204522.

It can be written as a sum of positive squares in 2 ways, for example, as 122014116 + 103388224 = 11046^2 + 10168^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5635039 + ... + 5635078.

It is an arithmetic number, because the mean of its divisors is an integer number (39445413).

Almost surely, 2^225402340 is an apocalyptic number.

225402340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225402340 is an abundant number, since it is smaller than the sum of its proper divisors (247942616).

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

225402340 is a wasteful number, since it uses less digits than its factorization.

225402340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11270126 (or 11270124 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 225402340 is about 15013.4053432258. The cubic root of 225402340 is about 608.5825189609.

Adding to 225402340 its reverse (43204522), we get a palindrome (268606862).

The spelling of 225402340 in words is "two hundred twenty-five million, four hundred two thousand, three hundred forty".