23400512 has 28 divisors (see below), whose sum is σ = 46817280. Its totient is φ = 11604096.

The previous prime is 23400493. The next prime is 23400523. The reversal of 23400512 is 21500432.

23400512 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6689 + ... + 9567.

Almost surely, 2^23400512 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 23400512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23408640).

23400512 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

23400512 is a wasteful number, since it uses less digits than its factorization.

23400512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3018 (or 3008 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 23400512 is about 4837.4075701764. The cubic root of 23400512 is about 286.0279366976.

Adding to 23400512 its reverse (21500432), we get a palindrome (44900944).

The spelling of 23400512 in words is "twenty-three million, four hundred thousand, five hundred twelve".