340049279 has 2 divisors, whose sum is σ = 340049280. Its totient is φ = 340049278.

The previous prime is 340049267. The next prime is 340049329. The reversal of 340049279 is 972940043.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 340049279 - 2¹² = 340045183 is a prime.

It is equal to p_18297164 and since 340049279 and 18297164 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 (340049579) 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, 170024639 + 170024640.

It is an arithmetic number, because the mean of its divisors is an integer number (170024640).

Almost surely, 2^340049279 is an apocalyptic number.

340049279 is a deficient number, since it is larger than the sum of its proper divisors (1).

340049279 is an equidigital number, since it uses as much as digits as its factorization.

340049279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 340049279 is about 18440.4251306742. The cubic root of 340049279 is about 697.9869230972.

The spelling of 340049279 in words is "three hundred forty million, forty-nine thousand, two hundred seventy-nine".