340539293 has 2 divisors, whose sum is σ = 340539294. Its totient is φ = 340539292.

The previous prime is 340539281. The next prime is 340539301. The reversal of 340539293 is 392935043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 337016164 + 3523129 = 18358^2 + 1877^2 .

It is a cyclic number.

It is not a de Polignac number, because 340539293 - 2⁶ = 340539229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340539253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170269646 + 170269647.

It is an arithmetic number, because the mean of its divisors is an integer number (170269647).

Almost surely, 2^340539293 is an apocalyptic number.

It is an amenable number.

340539293 is a deficient number, since it is larger than the sum of its proper divisors (1).

340539293 is an equidigital number, since it uses as much as digits as its factorization.

340539293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87480, while the sum is 38.

The square root of 340539293 is about 18453.7067550127. The cubic root of 340539293 is about 698.3220306148.

The spelling of 340539293 in words is "three hundred forty million, five hundred thirty-nine thousand, two hundred ninety-three".