23570252440 has 96 divisors (see below), whose sum is σ = 61747963200. Its totient is φ = 8073838080.

The previous prime is 23570252401. The next prime is 23570252467. The reversal of 23570252440 is 4425207532.

It is a junction number, because it is equal to n+sod(n) for n = 23570252396 and 23570252405.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 2407876 + ... + 2417644.

It is an arithmetic number, because the mean of its divisors is an integer number (643207950).

Almost surely, 2^23570252440 is an apocalyptic number.

23570252440 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 23570252440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30873981600).

23570252440 is an abundant number, since it is smaller than the sum of its proper divisors (38177710760).

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

23570252440 is a wasteful number, since it uses less digits than its factorization.

23570252440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11025 (or 11014 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 34.

Adding to 23570252440 its reverse (4425207532), we get a palindrome (27995459972).

The spelling of 23570252440 in words is "twenty-three billion, five hundred seventy million, two hundred fifty-two thousand, four hundred forty".