1340996740 has 12 divisors (see below), whose sum is σ = 2816093196. Its totient is φ = 536398688.

The previous prime is 1340996719. The next prime is 1340996819. The reversal of 1340996740 is 476990431.

It can be written as a sum of positive squares in 2 ways, for example, as 302481664 + 1038515076 = 17392^2 + 32226^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33524899 + ... + 33524938.

It is an arithmetic number, because the mean of its divisors is an integer number (234674433).

Almost surely, 2^1340996740 is an apocalyptic number.

1340996740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340996740 is an abundant number, since it is smaller than the sum of its proper divisors (1475096456).

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

1340996740 is a wasteful number, since it uses less digits than its factorization.

1340996740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67049846 (or 67049844 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 1340996740 is about 36619.6223355730. The cubic root of 1340996740 is about 1102.7470568620.

The spelling of 1340996740 in words is "one billion, three hundred forty million, nine hundred ninety-six thousand, seven hundred forty".