1340817419 has 2 divisors, whose sum is σ = 1340817420. Its totient is φ = 1340817418.

The previous prime is 1340817397. The next prime is 1340817503. The reversal of 1340817419 is 9147180431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1340817419 - 2²⁸ = 1072381963 is a prime.

It is a super-2 number, since 2×1340817419² = 3595582702187643122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1340819419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670408709 + 670408710.

It is an arithmetic number, because the mean of its divisors is an integer number (670408710).

Almost surely, 2^1340817419 is an apocalyptic number.

1340817419 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340817419 is an equidigital number, since it uses as much as digits as its factorization.

1340817419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 1340817419 is about 36617.1738259522. The cubic root of 1340817419 is about 1102.6979007594.

The spelling of 1340817419 in words is "one billion, three hundred forty million, eight hundred seventeen thousand, four hundred nineteen".