12840800140 has 48 divisors (see below), whose sum is σ = 31251999744. Its totient is φ = 4340548800.

The previous prime is 12840800131. The next prime is 12840800143. The reversal of 12840800140 is 4100804821.

It is a super-2 number, since 2×12840800140² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 12840800099 and 12840800108.

It is not an unprimeable number, because it can be changed into a prime (12840800143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 635976 + ... + 655855.

It is an arithmetic number, because the mean of its divisors is an integer number (651083328).

Almost surely, 2^12840800140 is an apocalyptic number.

12840800140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12840800140 is an abundant number, since it is smaller than the sum of its proper divisors (18411199604).

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

12840800140 is a wasteful number, since it uses less digits than its factorization.

12840800140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291918 (or 1291916 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 28.

The spelling of 12840800140 in words is "twelve billion, eight hundred forty million, eight hundred thousand, one hundred forty".