23940224 has 96 divisors (see below), whose sum is σ = 60698160. Its totient is φ = 9300480.

The previous prime is 23940223. The next prime is 23940251. The reversal of 23940224 is 42204932.

It is a junction number, because it is equal to n+sod(n) for n = 23940193 and 23940202.

It is not an unprimeable number, because it can be changed into a prime (23940223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68819 + ... + 69165.

Almost surely, 2^23940224 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 23940224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30349080).

23940224 is an abundant number, since it is smaller than the sum of its proper divisors (36757936).

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

23940224 is a wasteful number, since it uses less digits than its factorization.

23940224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 23940224 is about 4892.8748195718. The cubic root of 23940224 is about 288.2102374377.

The spelling of 23940224 in words is "twenty-three million, nine hundred forty thousand, two hundred twenty-four".