423403224 has 32 divisors (see below), whose sum is σ = 1120774320. Its totient is φ = 132832256.

The previous prime is 423403193. The next prime is 423403229. The reversal of 423403224 is 422304324.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 423403194 and 423403203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423403229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 518469 + ... + 519284.

Almost surely, 2^423403224 is an apocalyptic number.

It is an amenable number.

423403224 is an abundant number, since it is smaller than the sum of its proper divisors (697371096).

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

423403224 is a wasteful number, since it uses less digits than its factorization.

423403224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037779 (or 1037775 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 423403224 is about 20576.7641771003. The cubic root of 423403224 is about 750.9045229014.

Adding to 423403224 its reverse (422304324), we get a palindrome (845707548).

The spelling of 423403224 in words is "four hundred twenty-three million, four hundred three thousand, two hundred twenty-four".