1140320322440 has 128 divisors (see below), whose sum is σ = 2826798428160. Its totient is φ = 411363753984.

The previous prime is 1140320322439. The next prime is 1140320322467. The reversal of 1140320322440 is 442230230411.

It is a super-3 number, since 3×1140320322440³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14061449 + ... + 14142311.

It is an arithmetic number, because the mean of its divisors is an integer number (22084362720).

Almost surely, 2^{1140320322440} is an apocalyptic number.

1140320322440 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 1140320322440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1413399214080).

1140320322440 is an abundant number, since it is smaller than the sum of its proper divisors (1686478105720).

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

1140320322440 is a wasteful number, since it uses less digits than its factorization.

1140320322440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81511 (or 81507 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 1140320322440 its reverse (442230230411), we get a palindrome (1582550552851).

The spelling of 1140320322440 in words is "one trillion, one hundred forty billion, three hundred twenty million, three hundred twenty-two thousand, four hundred forty".