23278256 has 10 divisors (see below), whose sum is σ = 45101652. Its totient is φ = 11639120.

The previous prime is 23278243. The next prime is 23278259. The reversal of 23278256 is 65287232.

It is not an unprimeable number, because it can be changed into a prime (23278259) 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 as a sum of consecutive naturals, namely, 727430 + ... + 727461.

Almost surely, 2^23278256 is an apocalyptic number.

It is an amenable number.

23278256 is a deficient number, since it is larger than the sum of its proper divisors (21823396).

23278256 is a wasteful number, since it uses less digits than its factorization.

23278256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1454899 (or 1454893 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 23278256 is about 4824.7545015265. The cubic root of 23278256 is about 285.5289489448.

The spelling of 23278256 in words is "twenty-three million, two hundred seventy-eight thousand, two hundred fifty-six".