23534354240 has 112 divisors (see below), whose sum is σ = 58382976960. Its totient is φ = 9028177920.

The previous prime is 23534354203. The next prime is 23534354267. The reversal of 23534354240 is 4245343532.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 23534354240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 758879 + ... + 789281.

It is an arithmetic number, because the mean of its divisors is an integer number (521276580).

Almost surely, 2^23534354240 is an apocalyptic number.

23534354240 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 23534354240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29191488480).

23534354240 is an abundant number, since it is smaller than the sum of its proper divisors (34848622720).

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

23534354240 is a wasteful number, since it uses less digits than its factorization.

23534354240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30520 (or 30510 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 35.

Adding to 23534354240 its reverse (4245343532), we get a palindrome (27779697772).

The spelling of 23534354240 in words is "twenty-three billion, five hundred thirty-four million, three hundred fifty-four thousand, two hundred forty".