340553449 has 2 divisors, whose sum is σ = 340553450. Its totient is φ = 340553448.

The previous prime is 340553443. The next prime is 340553453. The reversal of 340553449 is 944355043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 212139225 + 128414224 = 14565^2 + 11332^2 .

It is a cyclic number.

It is not a de Polignac number, because 340553449 - 2⁹ = 340552937 is a prime.

It is not a weakly prime, because it can be changed into another prime (340553443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170276724 + 170276725.

It is an arithmetic number, because the mean of its divisors is an integer number (170276725).

Almost surely, 2^340553449 is an apocalyptic number.

It is an amenable number.

340553449 is a deficient number, since it is larger than the sum of its proper divisors (1).

340553449 is an equidigital number, since it uses as much as digits as its factorization.

340553449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 37.

The square root of 340553449 is about 18454.0903054038. The cubic root of 340553449 is about 698.3317067471.

The spelling of 340553449 in words is "three hundred forty million, five hundred fifty-three thousand, four hundred forty-nine".