459940309 has 2 divisors, whose sum is σ = 459940310. Its totient is φ = 459940308.

The previous prime is 459940301. The next prime is 459940333. The reversal of 459940309 is 903049954.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 357323409 + 102616900 = 18903^2 + 10130^2 .

It is a cyclic number.

It is not a de Polignac number, because 459940309 - 2³ = 459940301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (459940301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 229970154 + 229970155.

It is an arithmetic number, because the mean of its divisors is an integer number (229970155).

Almost surely, 2^459940309 is an apocalyptic number.

It is an amenable number.

459940309 is a deficient number, since it is larger than the sum of its proper divisors (1).

459940309 is an equidigital number, since it uses as much as digits as its factorization.

459940309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 459940309 is about 21446.2189907685. The cubic root of 459940309 is about 771.9108715461.

The spelling of 459940309 in words is "four hundred fifty-nine million, nine hundred forty thousand, three hundred nine".