23212304 has 40 divisors (see below), whose sum is σ = 47354112. Its totient is φ = 11007360.

The previous prime is 23212297. The next prime is 23212331. The reversal of 23212304 is 40321232.

It is a super-2 number, since 2×23212304² = 1077622113976832, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25847 + ... + 26729.

Almost surely, 2^23212304 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 23212304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23677056).

23212304 is an abundant number, since it is smaller than the sum of its proper divisors (24141808).

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

23212304 is a wasteful number, since it uses less digits than its factorization.

23212304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975 (or 969 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 23212304 is about 4817.9149016976. The cubic root of 23212304 is about 285.2590401583.

Adding to 23212304 its reverse (40321232), we get a palindrome (63533536).

The spelling of 23212304 in words is "twenty-three million, two hundred twelve thousand, three hundred four".