1340410442140 has 96 divisors (see below), whose sum is σ = 3511513119744. Its totient is φ = 417543260160.

The previous prime is 1340410442017. The next prime is 1340410442249. The reversal of 1340410442140 is 412440140431.

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 = 1340410442099 and 1340410442108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2356929 + ... + 2869831.

It is an arithmetic number, because the mean of its divisors is an integer number (36578261664).

Almost surely, 2^{1340410442140} is an apocalyptic number.

1340410442140 is a gapful number since it is divisible by the number (10) 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 1340410442140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1755756559872).

1340410442140 is an abundant number, since it is smaller than the sum of its proper divisors (2171102677604).

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

1340410442140 is a wasteful number, since it uses less digits than its factorization.

1340410442140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514627 (or 514625 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 1340410442140 its reverse (412440140431), we get a palindrome (1752850582571).

The spelling of 1340410442140 in words is "one trillion, three hundred forty billion, four hundred ten million, four hundred forty-two thousand, one hundred forty".