23826728 has 16 divisors (see below), whose sum is σ = 45072180. Its totient is φ = 11807488.

The previous prime is 23826721. The next prime is 23826731. The reversal of 23826728 is 82762832.

It can be written as a sum of positive squares in 2 ways, for example, as 20448484 + 3378244 = 4522^2 + 1838^2 .

It is a super-4 number, since 4×23826728⁴ (a number of 31 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23826691 and 23826700.

It is not an unprimeable number, because it can be changed into a prime (23826721) 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 in 3 ways as a sum of consecutive naturals, for example, 12275 + ... + 14082.

Almost surely, 2^23826728 is an apocalyptic number.

It is an amenable number.

23826728 is a deficient number, since it is larger than the sum of its proper divisors (21245452).

23826728 is a wasteful number, since it uses less digits than its factorization.

23826728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26476 (or 26472 counting only the distinct ones).

The product of its digits is 64512, while the sum is 38.

The square root of 23826728 is about 4881.2629513272. The cubic root of 23826728 is about 287.7540660249.

The spelling of 23826728 in words is "twenty-three million, eight hundred twenty-six thousand, seven hundred twenty-eight".