1340877841 has 2 divisors, whose sum is σ = 1340877842. Its totient is φ = 1340877840.

The previous prime is 1340877833. The next prime is 1340877947. The reversal of 1340877841 is 1487780431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 998812816 + 342065025 = 31604^2 + 18495^2 .

It is a cyclic number.

It is not a de Polignac number, because 1340877841 - 2³ = 1340877833 is a prime.

It is not a weakly prime, because it can be changed into another prime (1340877821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670438920 + 670438921.

It is an arithmetic number, because the mean of its divisors is an integer number (670438921).

Almost surely, 2^1340877841 is an apocalyptic number.

It is an amenable number.

1340877841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340877841 is an equidigital number, since it uses as much as digits as its factorization.

1340877841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 150528, while the sum is 43.

The square root of 1340877841 is about 36617.9988666776. The cubic root of 1340877841 is about 1102.7144643399.

The spelling of 1340877841 in words is "one billion, three hundred forty million, eight hundred seventy-seven thousand, eight hundred forty-one".