23066728 has 32 divisors (see below), whose sum is σ = 44939520. Its totient is φ = 11088000.

The previous prime is 23066717. The next prime is 23066737. The reversal of 23066728 is 82766032.

It is a junction number, because it is equal to n+sod(n) for n = 23066693 and 23066702.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69523 + ... + 69853.

It is an arithmetic number, because the mean of its divisors is an integer number (1404360).

Almost surely, 2^23066728 is an apocalyptic number.

It is an amenable number.

23066728 is a deficient number, since it is larger than the sum of its proper divisors (21872792).

23066728 is a wasteful number, since it uses less digits than its factorization.

23066728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649 (or 645 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 23066728 is about 4802.7833596780. The cubic root of 23066728 is about 284.6614549910.

The spelling of 23066728 in words is "twenty-three million, sixty-six thousand, seven hundred twenty-eight".