522340209 has 12 divisors (see below), whose sum is σ = 754820352. Its totient is φ = 348075000.

The previous prime is 522340207. The next prime is 522340223. The reversal of 522340209 is 902043225.

It is not a de Polignac number, because 522340209 - 2¹ = 522340207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (522340207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11584 + ... + 34334.

It is an arithmetic number, because the mean of its divisors is an integer number (62901696).

Almost surely, 2^522340209 is an apocalyptic number.

It is an amenable number.

522340209 is a deficient number, since it is larger than the sum of its proper divisors (232480143).

522340209 is a wasteful number, since it uses less digits than its factorization.

522340209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25308 (or 25305 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 522340209 is about 22854.7633765918. The cubic root of 522340209 is about 805.3496720414.

The spelling of 522340209 in words is "five hundred twenty-two million, three hundred forty thousand, two hundred nine".