23232443140 has 24 divisors (see below), whose sum is σ = 48847017240. Its totient is φ = 9281760768.

The previous prime is 23232443137. The next prime is 23232443177. The reversal of 23232443140 is 4134423232.

It can be written as a sum of positive squares in 4 ways, for example, as 5817417984 + 17415025156 = 76272^2 + 131966^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23232443099 and 23232443108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 684037 + ... + 717196.

It is an arithmetic number, because the mean of its divisors is an integer number (2035292385).

Almost surely, 2^23232443140 is an apocalyptic number.

23232443140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23232443140 is an abundant number, since it is smaller than the sum of its proper divisors (25614574100).

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

23232443140 is a wasteful number, since it uses less digits than its factorization.

23232443140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402071 (or 1402069 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 23232443140 its reverse (4134423232), we get a palindrome (27366866372).

The spelling of 23232443140 in words is "twenty-three billion, two hundred thirty-two million, four hundred forty-three thousand, one hundred forty".