23726428 has 12 divisors (see below), whose sum is σ = 45295992. Its totient is φ = 10784720.

The previous prime is 23726419. The next prime is 23726429. The reversal of 23726428 is 82462732.

It is a junction number, because it is equal to n+sod(n) for n = 23726393 and 23726402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23726429) 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, 269575 + ... + 269662.

It is an arithmetic number, because the mean of its divisors is an integer number (3774666).

Almost surely, 2^23726428 is an apocalyptic number.

It is an amenable number.

23726428 is a deficient number, since it is larger than the sum of its proper divisors (21569564).

23726428 is a wasteful number, since it uses less digits than its factorization.

23726428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539252 (or 539250 counting only the distinct ones).

The product of its digits is 32256, while the sum is 34.

The square root of 23726428 is about 4870.9781358573. The cubic root of 23726428 is about 287.3497256250.

The spelling of 23726428 in words is "twenty-three million, seven hundred twenty-six thousand, four hundred twenty-eight".