340863049 has 2 divisors, whose sum is σ = 340863050. Its totient is φ = 340863048.

The previous prime is 340863043. The next prime is 340863113. The reversal of 340863049 is 940368043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 310887424 + 29975625 = 17632^2 + 5475^2 .

It is a cyclic number.

It is not a de Polignac number, because 340863049 - 2²¹ = 338765897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 340862999 and 340863017.

It is not a weakly prime, because it can be changed into another prime (340863043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170431524 + 170431525.

It is an arithmetic number, because the mean of its divisors is an integer number (170431525).

Almost surely, 2^340863049 is an apocalyptic number.

It is an amenable number.

340863049 is a deficient number, since it is larger than the sum of its proper divisors (1).

340863049 is an equidigital number, since it uses as much as digits as its factorization.

340863049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 340863049 is about 18462.4767840071. The cubic root of 340863049 is about 698.5432623904.

The spelling of 340863049 in words is "three hundred forty million, eight hundred sixty-three thousand, forty-nine".