23643456 has 28 divisors (see below), whose sum is σ = 62557152. Its totient is φ = 7881088.

The previous prime is 23643449. The next prime is 23643461. The reversal of 23643456 is 65434632.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61380 + ... + 61763.

It is an arithmetic number, because the mean of its divisors is an integer number (2234184).

Almost surely, 2^23643456 is an apocalyptic number.

It is an amenable number.

23643456 is an abundant number, since it is smaller than the sum of its proper divisors (38913696).

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

23643456 is a wasteful number, since it uses less digits than its factorization.

23643456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123158 (or 123148 counting only the distinct ones).

The product of its digits is 51840, while the sum is 33.

The square root of 23643456 is about 4862.4537015791. The cubic root of 23643456 is about 287.0143776664.

The spelling of 23643456 in words is "twenty-three million, six hundred forty-three thousand, four hundred fifty-six".