23712256 has 40 divisors (see below), whose sum is σ = 49042620. Its totient is φ = 11440128.

The previous prime is 23712251. The next prime is 23712257. The reversal of 23712256 is 65221732.

It can be written as a sum of positive squares in 2 ways, for example, as 23193856 + 518400 = 4816^2 + 720^2 .

It is not an unprimeable number, because it can be changed into a prime (23712251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14050 + ... + 15646.

Almost surely, 2^23712256 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 23712256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24521310).

23712256 is an abundant number, since it is smaller than the sum of its proper divisors (25330364).

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

23712256 is an equidigital number, since it uses as much as digits as its factorization.

23712256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644 (or 1628 counting only the distinct ones).

The product of its digits is 5040, while the sum is 28.

The square root of 23712256 is about 4869.5231799428. The cubic root of 23712256 is about 287.2925020740.

Adding to 23712256 its reverse (65221732), we get a palindrome (88933988).

The spelling of 23712256 in words is "twenty-three million, seven hundred twelve thousand, two hundred fifty-six".