1340026798320 has 600 divisors, whose sum is σ = 5474913087600. Its totient is φ = 302843971584.

The previous prime is 1340026798289. The next prime is 1340026798321. The reversal of 1340026798320 is 238976200431.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340026798321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 28235571 + ... + 28282989.

It is an arithmetic number, because the mean of its divisors is an integer number (9124855146).

Almost surely, 2^{1340026798320} is an apocalyptic number.

1340026798320 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 1340026798320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2737456543800).

1340026798320 is an abundant number, since it is smaller than the sum of its proper divisors (4134886289280).

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

1340026798320 is a wasteful number, since it uses less digits than its factorization.

1340026798320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47547 (or 47525 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 1340026798320 in words is "one trillion, three hundred forty billion, twenty-six million, seven hundred ninety-eight thousand, three hundred twenty".