225431030 has 32 divisors (see below), whose sum is σ = 443410848. Its totient is φ = 81836800.

The previous prime is 225431023. The next prime is 225431077. The reversal of 225431030 is 30134522.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 225430993 and 225431011.

It is a congruent number.

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, 82364 + ... + 85056.

It is an arithmetic number, because the mean of its divisors is an integer number (13856589).

Almost surely, 2^225431030 is an apocalyptic number.

225431030 is a deficient number, since it is larger than the sum of its proper divisors (217979818).

225431030 is a wasteful number, since it uses less digits than its factorization.

225431030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3472.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 225431030 is about 15014.3607922549. The cubic root of 225431030 is about 608.6083387042.

Adding to 225431030 its reverse (30134522), we get a palindrome (255565552).

The spelling of 225431030 in words is "two hundred twenty-five million, four hundred thirty-one thousand, thirty".