340632449 has 2 divisors, whose sum is σ = 340632450. Its totient is φ = 340632448.

The previous prime is 340632403. The next prime is 340632473. The reversal of 340632449 is 944236043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 267649600 + 72982849 = 16360^2 + 8543^2 .

It is a cyclic number.

It is not a de Polignac number, because 340632449 - 2¹⁶ = 340566913 is a prime.

It is not a weakly prime, because it can be changed into another prime (340632049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170316224 + 170316225.

It is an arithmetic number, because the mean of its divisors is an integer number (170316225).

Almost surely, 2^340632449 is an apocalyptic number.

It is an amenable number.

340632449 is a deficient number, since it is larger than the sum of its proper divisors (1).

340632449 is an equidigital number, since it uses as much as digits as its factorization.

340632449 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 35.

The square root of 340632449 is about 18456.2306281646. The cubic root of 340632449 is about 698.3857011491.

The spelling of 340632449 in words is "three hundred forty million, six hundred thirty-two thousand, four hundred forty-nine".