23010728 has 32 divisors (see below), whose sum is σ = 46963560. Its totient is φ = 10506240.

The previous prime is 23010727. The next prime is 23010731. The reversal of 23010728 is 82701032.

It can be written as a sum of positive squares in 4 ways, for example, as 16467364 + 6543364 = 4058^2 + 2558^2 .

It is not an unprimeable number, because it can be changed into a prime (23010721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8948 + ... + 11228.

Almost surely, 2^23010728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23010728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23481780).

23010728 is an abundant number, since it is smaller than the sum of its proper divisors (23952832).

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

23010728 is a wasteful number, since it uses less digits than its factorization.

23010728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2397 (or 2393 counting only the distinct ones).

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

The square root of 23010728 is about 4796.9498642366. The cubic root of 23010728 is about 284.4309070615.

The spelling of 23010728 in words is "twenty-three million, ten thousand, seven hundred twenty-eight".