23728028 has 12 divisors (see below), whose sum is σ = 41773872. Its totient is φ = 11792640.

The previous prime is 23728013. The next prime is 23728049. The reversal of 23728028 is 82082732.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 23727985 and 23728003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17093 + ... + 18428.

It is an arithmetic number, because the mean of its divisors is an integer number (3481156).

Almost surely, 2^23728028 is an apocalyptic number.

It is an amenable number.

23728028 is a deficient number, since it is larger than the sum of its proper divisors (18045844).

23728028 is a wasteful number, since it uses less digits than its factorization.

23728028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35692 (or 35690 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 23728028 is about 4871.1423711487. The cubic root of 23728028 is about 287.3561846564.

The spelling of 23728028 in words is "twenty-three million, seven hundred twenty-eight thousand, twenty-eight".