1340040983 has 2 divisors, whose sum is σ = 1340040984. Its totient is φ = 1340040982.

The previous prime is 1340040967. The next prime is 1340041057. The reversal of 1340040983 is 3890400431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1340040983 - 2⁴ = 1340040967 is a prime.

It is a super-2 number, since 2×1340040983² = 3591419672239212578, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1340040913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670020491 + 670020492.

It is an arithmetic number, because the mean of its divisors is an integer number (670020492).

Almost surely, 2^1340040983 is an apocalyptic number.

1340040983 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340040983 is an equidigital number, since it uses as much as digits as its factorization.

1340040983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 1340040983 is about 36606.5702162877. The cubic root of 1340040983 is about 1102.4850108084.

The spelling of 1340040983 in words is "one billion, three hundred forty million, forty thousand, nine hundred eighty-three".