23430324340 has 24 divisors (see below), whose sum is σ = 49217819112. Its totient is φ = 9369436800.

The previous prime is 23430324329. The next prime is 23430324343. The reversal of 23430324340 is 4342303432.

It can be written as a sum of positive squares in 4 ways, for example, as 4983795216 + 18446529124 = 70596^2 + 135818^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23430324299 and 23430324308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23430324343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96211 + ... + 236890.

It is an arithmetic number, because the mean of its divisors is an integer number (2050742463).

Almost surely, 2^23430324340 is an apocalyptic number.

23430324340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23430324340 is an abundant number, since it is smaller than the sum of its proper divisors (25787494772).

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

23430324340 is a wasteful number, since it uses less digits than its factorization.

23430324340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336627 (or 336625 counting only the distinct ones).

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

Adding to 23430324340 its reverse (4342303432), we get a palindrome (27772627772).

The spelling of 23430324340 in words is "twenty-three billion, four hundred thirty million, three hundred twenty-four thousand, three hundred forty".