12340522340 has 24 divisors (see below), whose sum is σ = 25927224120. Its totient is φ = 4933899008.

The previous prime is 12340522339. The next prime is 12340522349. The reversal of 12340522340 is 4322504321.

It can be written as a sum of positive squares in 4 ways, for example, as 1578949696 + 10761572644 = 39736^2 + 103738^2 .

It is not an unprimeable number, because it can be changed into a prime (12340522349) 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, 100235 + ... + 186354.

It is an arithmetic number, because the mean of its divisors is an integer number (1080301005).

Almost surely, 2^12340522340 is an apocalyptic number.

12340522340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12340522340 is an abundant number, since it is smaller than the sum of its proper divisors (13586701780).

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

12340522340 is a wasteful number, since it uses less digits than its factorization.

12340522340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288751 (or 288749 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The spelling of 12340522340 in words is "twelve billion, three hundred forty million, five hundred twenty-two thousand, three hundred forty".