340584407 has 2 divisors, whose sum is σ = 340584408. Its totient is φ = 340584406.

The previous prime is 340584379. The next prime is 340584449. The reversal of 340584407 is 704485043.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 340584407 - 2¹² = 340580311 is a prime.

It is equal to p_18324476 and since 340584407 and 18324476 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340584487) 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, 170292203 + 170292204.

It is an arithmetic number, because the mean of its divisors is an integer number (170292204).

Almost surely, 2^340584407 is an apocalyptic number.

340584407 is a deficient number, since it is larger than the sum of its proper divisors (1).

340584407 is an equidigital number, since it uses as much as digits as its factorization.

340584407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 340584407 is about 18454.9290705762. The cubic root of 340584407 is about 698.3528667128.

The spelling of 340584407 in words is "three hundred forty million, five hundred eighty-four thousand, four hundred seven".