350240809 has 2 divisors, whose sum is σ = 350240810. Its totient is φ = 350240808.

The previous prime is 350240791. The next prime is 350240857. The reversal of 350240809 is 908042053.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 305725225 + 44515584 = 17485^2 + 6672^2 .

It is a cyclic number.

It is not a de Polignac number, because 350240809 - 2¹⁷ = 350109737 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (350240879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175120404 + 175120405.

It is an arithmetic number, because the mean of its divisors is an integer number (175120405).

Almost surely, 2^350240809 is an apocalyptic number.

It is an amenable number.

350240809 is a deficient number, since it is larger than the sum of its proper divisors (1).

350240809 is an equidigital number, since it uses as much as digits as its factorization.

350240809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 350240809 is about 18714.7217184761. The cubic root of 350240809 is about 704.8914602449.

The spelling of 350240809 in words is "three hundred fifty million, two hundred forty thousand, eight hundred nine".