421233224 has 32 divisors (see below), whose sum is σ = 829664640. Its totient is φ = 200112000.

The previous prime is 421233193. The next prime is 421233269. The reversal of 421233224 is 422332124.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 421233224.

It is an unprimeable number.

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, 20204 + ... + 35364.

It is an arithmetic number, because the mean of its divisors is an integer number (25927020).

Almost surely, 2^421233224 is an apocalyptic number.

It is an amenable number.

421233224 is a deficient number, since it is larger than the sum of its proper divisors (408431416).

421233224 is a wasteful number, since it uses less digits than its factorization.

421233224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15341 (or 15337 counting only the distinct ones).

The product of its digits is 2304, while the sum is 23.

The square root of 421233224 is about 20523.9670629243. The cubic root of 421233224 is about 749.6194952838.

Adding to 421233224 its reverse (422332124), we get a palindrome (843565348).

The spelling of 421233224 in words is "four hundred twenty-one million, two hundred thirty-three thousand, two hundred twenty-four".