340503263 has 2 divisors, whose sum is σ = 340503264. Its totient is φ = 340503262.

The previous prime is 340503259. The next prime is 340503277. The reversal of 340503263 is 362305043.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 340503263 - 2² = 340503259 is a prime.

It is a super-2 number, since 2×340503263² = 231884944227294338, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340503763) 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, 170251631 + 170251632.

It is an arithmetic number, because the mean of its divisors is an integer number (170251632).

Almost surely, 2^340503263 is an apocalyptic number.

340503263 is a deficient number, since it is larger than the sum of its proper divisors (1).

340503263 is an equidigital number, since it uses as much as digits as its factorization.

340503263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 26.

The square root of 340503263 is about 18452.7305025571. The cubic root of 340503263 is about 698.2974016115.

The spelling of 340503263 in words is "three hundred forty million, five hundred three thousand, two hundred sixty-three".