423442225 has 24 divisors (see below), whose sum is σ = 535680000. Its totient is φ = 331968000.

The previous prime is 423442207. The next prime is 423442231. The reversal of 423442225 is 522244324.

It is not a de Polignac number, because 423442225 - 2⁹ = 423441713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 423442193 and 423442202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 338401 + ... + 339649.

It is an arithmetic number, because the mean of its divisors is an integer number (22320000).

Almost surely, 2^423442225 is an apocalyptic number.

It is an amenable number.

423442225 is a deficient number, since it is larger than the sum of its proper divisors (112237775).

423442225 is a wasteful number, since it uses less digits than its factorization.

423442225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521 (or 1516 counting only the distinct ones).

The product of its digits is 15360, while the sum is 28.

The square root of 423442225 is about 20577.7118504463. The cubic root of 423442225 is about 750.9275782511.

Adding to 423442225 its reverse (522244324), we get a palindrome (945686549).

The spelling of 423442225 in words is "four hundred twenty-three million, four hundred forty-two thousand, two hundred twenty-five".