23143424 has 44 divisors (see below), whose sum is σ = 46941804. Its totient is φ = 11403264.

The previous prime is 23143423. The next prime is 23143429. The reversal of 23143424 is 42434132.

It can be written as a sum of positive squares in 2 ways, for example, as 7398400 + 15745024 = 2720^2 + 3968^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23143424.

It is not an unprimeable number, because it can be changed into a prime (23143423) 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, 99212 + ... + 99444.

Almost surely, 2^23143424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23143424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23470902).

23143424 is an abundant number, since it is smaller than the sum of its proper divisors (23798380).

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

23143424 is an equidigital number, since it uses as much as digits as its factorization.

23143424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350 (or 332 counting only the distinct ones).

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

The square root of 23143424 is about 4810.7612703189. The cubic root of 23143424 is about 284.9766021625.

Adding to 23143424 its reverse (42434132), we get a palindrome (65577556).

The spelling of 23143424 in words is "twenty-three million, one hundred forty-three thousand, four hundred twenty-four".