1340982864 has 240 divisors, whose sum is σ = 4295683392. Its totient is φ = 402361344.

The previous prime is 1340982829. The next prime is 1340982871. The reversal of 1340982864 is 4682890431.

It is a happy number.

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 47 ways as a sum of consecutive naturals, for example, 2173084 + ... + 2173700.

Almost surely, 2^1340982864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1340982864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2147841696).

1340982864 is an abundant number, since it is smaller than the sum of its proper divisors (2954700528).

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

1340982864 is a wasteful number, since it uses less digits than its factorization.

1340982864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696 (or 678 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 1340982864 is about 36619.4328738171. The cubic root of 1340982864 is about 1102.7432532806.

The spelling of 1340982864 in words is "one billion, three hundred forty million, nine hundred eighty-two thousand, eight hundred sixty-four".