23005223040 has 128 divisors (see below), whose sum is σ = 74041718400. Its totient is φ = 6075113472.

The previous prime is 23005223029. The next prime is 23005223077. The reversal of 23005223040 is 4032250032.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 23005222998 and 23005223016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139596 + ... + 255924.

It is an arithmetic number, because the mean of its divisors is an integer number (578450925).

Almost surely, 2^23005223040 is an apocalyptic number.

23005223040 is a gapful number since it is divisible by the number (20) 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 23005223040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37020859200).

23005223040 is an abundant number, since it is smaller than the sum of its proper divisors (51036495360).

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

23005223040 is a wasteful number, since it uses less digits than its factorization.

23005223040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116454 (or 116442 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

Adding to 23005223040 its reverse (4032250032), we get a palindrome (27037473072).

The spelling of 23005223040 in words is "twenty-three billion, five million, two hundred twenty-three thousand, forty".