423121224 has 32 divisors (see below), whose sum is σ = 1061557920. Its totient is φ = 140539776.

The previous prime is 423121217. The next prime is 423121229. The reversal of 423121224 is 422121324.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 423121224.

It is not an unprimeable number, because it can be changed into a prime (423121229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24357 + ... + 37940.

It is an arithmetic number, because the mean of its divisors is an integer number (33173685).

Almost surely, 2^423121224 is an apocalyptic number.

It is an amenable number.

423121224 is an abundant number, since it is smaller than the sum of its proper divisors (638436696).

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

423121224 is a wasteful number, since it uses less digits than its factorization.

423121224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62589 (or 62585 counting only the distinct ones).

The product of its digits is 768, while the sum is 21.

The square root of 423121224 is about 20569.9106463786. The cubic root of 423121224 is about 750.7377771197.

Adding to 423121224 its reverse (422121324), we get a palindrome (845242548).

The spelling of 423121224 in words is "four hundred twenty-three million, one hundred twenty-one thousand, two hundred twenty-four".