23340233440 has 96 divisors (see below), whose sum is σ = 56779972704. Its totient is φ = 9059973120.

The previous prime is 23340233437. The next prime is 23340233489. The reversal of 23340233440 is 4433204332.

It is a junction number, because it is equal to n+sod(n) for n = 23340233399 and 23340233408.

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, 2345275 + ... + 2355205.

It is an arithmetic number, because the mean of its divisors is an integer number (591458049).

Almost surely, 2^23340233440 is an apocalyptic number.

23340233440 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 23340233440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28389986352).

23340233440 is an abundant number, since it is smaller than the sum of its proper divisors (33439739264).

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

23340233440 is a wasteful number, since it uses less digits than its factorization.

23340233440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10380 (or 10372 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 28.

Adding to 23340233440 its reverse (4433204332), we get a palindrome (27773437772).

The spelling of 23340233440 in words is "twenty-three billion, three hundred forty million, two hundred thirty-three thousand, four hundred forty".