209426313 has 16 divisors (see below), whose sum is σ = 295015680. Its totient is φ = 131932416.

The previous prime is 209426311. The next prime is 209426317. The reversal of 209426313 is 313624902.

It is not a de Polignac number, because 209426313 - 2¹ = 209426311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (209426311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21520 + ... + 29697.

It is an arithmetic number, because the mean of its divisors is an integer number (18438480).

Almost surely, 2^209426313 is an apocalyptic number.

It is an amenable number.

209426313 is a deficient number, since it is larger than the sum of its proper divisors (85589367).

209426313 is a wasteful number, since it uses less digits than its factorization.

209426313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51296.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 209426313 is about 14471.5691270850. The cubic root of 209426313 is about 593.8504396216.

The spelling of 209426313 in words is "two hundred nine million, four hundred twenty-six thousand, three hundred thirteen".