23115224 has 32 divisors (see below), whose sum is σ = 47561040. Its totient is φ = 10444800.

The previous prime is 23115221. The next prime is 23115227. The reversal of 23115224 is 42251132.

It is an interprime number because it is at equal distance from previous prime (23115221) and next prime (23115227).

It is a junction number, because it is equal to n+sod(n) for n = 23115196 and 23115205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23115221) 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, 16304 + ... + 17664.

Almost surely, 2^23115224 is an apocalyptic number.

It is an amenable number.

23115224 is an abundant number, since it is smaller than the sum of its proper divisors (24445816).

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

23115224 is a wasteful number, since it uses less digits than its factorization.

23115224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571 (or 1567 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 23115224 is about 4807.8294478902. The cubic root of 23115224 is about 284.8608081979.

Adding to 23115224 its reverse (42251132), we get a palindrome (65366356).

The spelling of 23115224 in words is "twenty-three million, one hundred fifteen thousand, two hundred twenty-four".