1326270640240 has 240 divisors, whose sum is σ = 4030903130688. Its totient is φ = 401492754432.

The previous prime is 1326270640207. The next prime is 1326270640259. The reversal of 1326270640240 is 420460726231.

It is a super-2 number, since 2×1326270640240² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1326270640240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 606304 + ... + 1737856.

Almost surely, 2^{1326270640240} is an apocalyptic number.

1326270640240 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 1326270640240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2015451565344).

1326270640240 is an abundant number, since it is smaller than the sum of its proper divisors (2704632490448).

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

1326270640240 is a wasteful number, since it uses less digits than its factorization.

1326270640240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131616 (or 1131603 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 37.

The spelling of 1326270640240 in words is "one trillion, three hundred twenty-six billion, two hundred seventy million, six hundred forty thousand, two hundred forty".