423242225 has 24 divisors (see below), whose sum is σ = 619150848. Its totient is φ = 280857600.

The previous prime is 423242207. The next prime is 423242227. The reversal of 423242225 is 522242324.

It is a happy number.

It is not a de Polignac number, because 423242225 - 2⁸ = 423241969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 423242194 and 423242203.

It is not an unprimeable number, because it can be changed into a prime (423242227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33584 + ... + 44433.

It is an arithmetic number, because the mean of its divisors is an integer number (25797952).

Almost surely, 2^423242225 is an apocalyptic number.

It is an amenable number.

423242225 is a deficient number, since it is larger than the sum of its proper divisors (195908623).

423242225 is a wasteful number, since it uses less digits than its factorization.

423242225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78065 (or 78060 counting only the distinct ones).

The product of its digits is 7680, while the sum is 26.

The square root of 423242225 is about 20572.8516496863. The cubic root of 423242225 is about 750.8093337318.

Adding to 423242225 its reverse (522242324), we get a palindrome (945484549).

Subtracting 423242225 from its reverse (522242324), we obtain a palindrome (99000099).

The spelling of 423242225 in words is "four hundred twenty-three million, two hundred forty-two thousand, two hundred twenty-five".