23305312 has 24 divisors (see below), whose sum is σ = 46952136. Its totient is φ = 11380992.

The previous prime is 23305309. The next prime is 23305313. The reversal of 23305312 is 21350332.

It is a self number, because there is not a number n which added to its sum of digits gives 23305312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23305313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7093 + ... + 9844.

It is an arithmetic number, because the mean of its divisors is an integer number (1956339).

Almost surely, 2^23305312 is an apocalyptic number.

It is an amenable number.

23305312 is an abundant number, since it is smaller than the sum of its proper divisors (23646824).

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

23305312 is a wasteful number, since it uses less digits than its factorization.

23305312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16990 (or 16982 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 23305312 is about 4827.5575605061. The cubic root of 23305312 is about 285.6395282509.

Adding to 23305312 its reverse (21350332), we get a palindrome (44655644).

The spelling of 23305312 in words is "twenty-three million, three hundred five thousand, three hundred twelve".