340585423 has 2 divisors, whose sum is σ = 340585424. Its totient is φ = 340585422.

The previous prime is 340585411. The next prime is 340585457. The reversal of 340585423 is 324585043.

It is an a-pointer prime, because the next prime (340585457) can be obtained adding 340585423 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 340585423 - 2²⁵ = 307030991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340585523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170292711 + 170292712.

It is an arithmetic number, because the mean of its divisors is an integer number (170292712).

Almost surely, 2^340585423 is an apocalyptic number.

340585423 is a deficient number, since it is larger than the sum of its proper divisors (1).

340585423 is an equidigital number, since it uses as much as digits as its factorization.

340585423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 340585423 is about 18454.9565970771. The cubic root of 340585423 is about 698.3535611327.

The spelling of 340585423 in words is "three hundred forty million, five hundred eighty-five thousand, four hundred twenty-three".