340540463 has 2 divisors, whose sum is σ = 340540464. Its totient is φ = 340540462.

The previous prime is 340540399. The next prime is 340540493. The reversal of 340540463 is 364045043.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 340540463 - 2⁶ = 340540399 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340540493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170270231 + 170270232.

It is an arithmetic number, because the mean of its divisors is an integer number (170270232).

Almost surely, 2^340540463 is an apocalyptic number.

340540463 is a deficient number, since it is larger than the sum of its proper divisors (1).

340540463 is an equidigital number, since it uses as much as digits as its factorization.

340540463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 340540463 is about 18453.7384559335. The cubic root of 340540463 is about 698.3228303618.

The spelling of 340540463 in words is "three hundred forty million, five hundred forty thousand, four hundred sixty-three".