23421224 has 16 divisors (see below), whose sum is σ = 46226400. Its totient is φ = 11094192.

The previous prime is 23421221. The next prime is 23421253. The reversal of 23421224 is 42212432.

It is a junction number, because it is equal to n+sod(n) for n = 23421196 and 23421205.

It is not an unprimeable number, because it can be changed into a prime (23421221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76892 + ... + 77195.

It is an arithmetic number, because the mean of its divisors is an integer number (2889150).

Almost surely, 2^23421224 is an apocalyptic number.

It is an amenable number.

23421224 is a deficient number, since it is larger than the sum of its proper divisors (22805176).

23421224 is a wasteful number, since it uses less digits than its factorization.

23421224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154112 (or 154108 counting only the distinct ones).

The product of its digits is 768, while the sum is 20.

The square root of 23421224 is about 4839.5479127704. The cubic root of 23421224 is about 286.1123004304.

Adding to 23421224 its reverse (42212432), we get a palindrome (65633656).

The spelling of 23421224 in words is "twenty-three million, four hundred twenty-one thousand, two hundred twenty-four".