340234673 has 2 divisors, whose sum is σ = 340234674. Its totient is φ = 340234672.

The previous prime is 340234663. The next prime is 340234681. The reversal of 340234673 is 376432043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 326633329 + 13601344 = 18073^2 + 3688^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340234673 is a prime.

It is a super-2 number, since 2×340234673² = 231519265422833858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (340234633) 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, 170117336 + 170117337.

It is an arithmetic number, because the mean of its divisors is an integer number (170117337).

Almost surely, 2^340234673 is an apocalyptic number.

It is an amenable number.

340234673 is a deficient number, since it is larger than the sum of its proper divisors (1).

340234673 is an equidigital number, since it uses as much as digits as its factorization.

340234673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 32.

The square root of 340234673 is about 18445.4512820912. The cubic root of 340234673 is about 698.1137469490.

The spelling of 340234673 in words is "three hundred forty million, two hundred thirty-four thousand, six hundred seventy-three".