23309000256 has 112 divisors (see below), whose sum is σ = 62254034496. Its totient is φ = 7696564224.

The previous prime is 23309000191. The next prime is 23309000269. The reversal of 23309000256 is 65200090332.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23857240 + ... + 23858216.

Almost surely, 2^23309000256 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 23309000256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31127017248).

23309000256 is an abundant number, since it is smaller than the sum of its proper divisors (38945034240).

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

23309000256 is a wasteful number, since it uses less digits than its factorization.

23309000256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036 (or 2026 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 30.

Adding to 23309000256 its reverse (65200090332), we get a palindrome (88509090588).

The spelling of 23309000256 in words is "twenty-three billion, three hundred nine million, two hundred fifty-six", and thus it is an aban number.