23140044220 has 24 divisors (see below), whose sum is σ = 48662661600. Its totient is φ = 9242956992.

The previous prime is 23140044167. The next prime is 23140044227. The reversal of 23140044220 is 2244004132.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 23140044191 and 23140044200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23140044227) 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, 801760 + ... + 830119.

It is an arithmetic number, because the mean of its divisors is an integer number (2027610900).

Almost surely, 2^23140044220 is an apocalyptic number.

23140044220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23140044220 is an abundant number, since it is smaller than the sum of its proper divisors (25522617380).

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

23140044220 is a wasteful number, since it uses less digits than its factorization.

23140044220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632597 (or 1632595 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 23140044220 its reverse (2244004132), we get a palindrome (25384048352).

The spelling of 23140044220 in words is "twenty-three billion, one hundred forty million, forty-four thousand, two hundred twenty".