1340843467 has 2 divisors, whose sum is σ = 1340843468. Its totient is φ = 1340843466.

The previous prime is 1340843461. The next prime is 1340843477. The reversal of 1340843467 is 7643480431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1340843467 - 2¹⁹ = 1340319179 is a prime.

It is a super-2 number, since 2×1340843467² = 3595722405993160178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1340843461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670421733 + 670421734.

It is an arithmetic number, because the mean of its divisors is an integer number (670421734).

Almost surely, 2^1340843467 is an apocalyptic number.

1340843467 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340843467 is an equidigital number, since it uses as much as digits as its factorization.

1340843467 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 40.

The square root of 1340843467 is about 36617.5295043235. The cubic root of 1340843467 is about 1102.7050414008.

The spelling of 1340843467 in words is "one billion, three hundred forty million, eight hundred forty-three thousand, four hundred sixty-seven".