340353049 has 2 divisors, whose sum is σ = 340353050. Its totient is φ = 340353048.

The previous prime is 340353043. The next prime is 340353059. The reversal of 340353049 is 940353043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 315701824 + 24651225 = 17768^2 + 4965^2 .

It is a cyclic number.

It is not a de Polignac number, because 340353049 - 2⁵ = 340353017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 340353049.

It is not a weakly prime, because it can be changed into another prime (340353043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170176524 + 170176525.

It is an arithmetic number, because the mean of its divisors is an integer number (170176525).

Almost surely, 2^340353049 is an apocalyptic number.

It is an amenable number.

340353049 is a deficient number, since it is larger than the sum of its proper divisors (1).

340353049 is an equidigital number, since it uses as much as digits as its factorization.

340353049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 31.

The square root of 340353049 is about 18448.6598158240. The cubic root of 340353049 is about 698.1947012012.

The spelling of 340353049 in words is "three hundred forty million, three hundred fifty-three thousand, forty-nine".