23432220040 has 32 divisors (see below), whose sum is σ = 52823350080. Its totient is φ = 9354958272.

The previous prime is 23432219947. The next prime is 23432220047. The reversal of 23432220040 is 4002223432.

It is a junction number, because it is equal to n+sod(n) for n = 23432219993 and 23432220020.

It is not an unprimeable number, because it can be changed into a prime (23432220047) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 539124 + ... + 580963.

It is an arithmetic number, because the mean of its divisors is an integer number (1650729690).

Almost surely, 2^23432220040 is an apocalyptic number.

23432220040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23432220040 is an abundant number, since it is smaller than the sum of its proper divisors (29391130040).

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

23432220040 is a wasteful number, since it uses less digits than its factorization.

23432220040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120621 (or 1120617 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 23432220040 its reverse (4002223432), we get a palindrome (27434443472).

The spelling of 23432220040 in words is "twenty-three billion, four hundred thirty-two million, two hundred twenty thousand, forty".