23340312 has 80 divisors (see below), whose sum is σ = 66066000. Its totient is φ = 7698240.

The previous prime is 23340311. The next prime is 23340319. The reversal of 23340312 is 21304332.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23340311) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 117189 + ... + 117387.

It is an arithmetic number, because the mean of its divisors is an integer number (825825).

Almost surely, 2^23340312 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 23340312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33033000).

23340312 is an abundant number, since it is smaller than the sum of its proper divisors (42725688).

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

23340312 is a wasteful number, since it uses less digits than its factorization.

23340312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398 (or 385 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 23340312 is about 4831.1812220201. The cubic root of 23340312 is about 285.7824482135.

Adding to 23340312 its reverse (21304332), we get a palindrome (44644644).

The spelling of 23340312 in words is "twenty-three million, three hundred forty thousand, three hundred twelve".