340303273 has 2 divisors, whose sum is σ = 340303274. Its totient is φ = 340303272.

The previous prime is 340303267. The next prime is 340303277. The reversal of 340303273 is 372303043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 320660649 + 19642624 = 17907^2 + 4432^2 .

It is a cyclic number.

It is not a de Polignac number, because 340303273 - 2⁵ = 340303241 is a prime.

It is a super-2 number, since 2×340303273² = 231612635229025058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (340303277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170151636 + 170151637.

It is an arithmetic number, because the mean of its divisors is an integer number (170151637).

Almost surely, 2^340303273 is an apocalyptic number.

It is an amenable number.

340303273 is a deficient number, since it is larger than the sum of its proper divisors (1).

340303273 is an equidigital number, since it uses as much as digits as its factorization.

340303273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 25.

The square root of 340303273 is about 18447.3107254147. The cubic root of 340303273 is about 698.1606629833.

The spelling of 340303273 in words is "three hundred forty million, three hundred three thousand, two hundred seventy-three".