340252277 has 2 divisors, whose sum is σ = 340252278. Its totient is φ = 340252276.

The previous prime is 340252243. The next prime is 340252279. The reversal of 340252277 is 772252043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 249450436 + 90801841 = 15794^2 + 9529^2 .

It is a cyclic number.

It is not a de Polignac number, because 340252277 - 2¹⁶ = 340186741 is a prime.

It is a super-2 number, since 2×340252277² = 231543224007369458, which contains 22 as substring.

Together with 340252279, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340252279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170126138 + 170126139.

It is an arithmetic number, because the mean of its divisors is an integer number (170126139).

Almost surely, 2^340252277 is an apocalyptic number.

It is an amenable number.

340252277 is a deficient number, since it is larger than the sum of its proper divisors (1).

340252277 is an equidigital number, since it uses as much as digits as its factorization.

340252277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 340252277 is about 18445.9284667376. The cubic root of 340252277 is about 698.1257870529.

The spelling of 340252277 in words is "three hundred forty million, two hundred fifty-two thousand, two hundred seventy-seven".