23021768 has 96 divisors (see below), whose sum is σ = 57866400. Its totient is φ = 8467200.

The previous prime is 23021759. The next prime is 23021771. The reversal of 23021768 is 86712032.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 23021768.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81788 + ... + 82068.

It is an arithmetic number, because the mean of its divisors is an integer number (602775).

Almost surely, 2^23021768 is an apocalyptic number.

23021768 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23021768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28933200).

23021768 is an abundant number, since it is smaller than the sum of its proper divisors (34844632).

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

23021768 is a wasteful number, since it uses less digits than its factorization.

23021768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331 (or 320 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 23021768 is about 4798.1004574727. The cubic root of 23021768 is about 284.4763875169.

The spelling of 23021768 in words is "twenty-three million, twenty-one thousand, seven hundred sixty-eight".