23100728 has 32 divisors (see below), whose sum is σ = 50844000. Its totient is φ = 9631872.

The previous prime is 23100709. The next prime is 23100731. The reversal of 23100728 is 82700132.

It is a congruent number.

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, 3503 + ... + 7646.

It is an arithmetic number, because the mean of its divisors is an integer number (1588875).

Almost surely, 2^23100728 is an apocalyptic number.

23100728 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

23100728 is an abundant number, since it is smaller than the sum of its proper divisors (27743272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23100728 is a wasteful number, since it uses less digits than its factorization.

23100728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11199 (or 11195 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 23100728 is about 4806.3216704669. The cubic root of 23100728 is about 284.8012485216.

The spelling of 23100728 in words is "twenty-three million, one hundred thousand, seven hundred twenty-eight".