268413309 has 12 divisors (see below), whose sum is σ = 390499200. Its totient is φ = 177654024.

The previous prime is 268413293. The next prime is 268413317. The reversal of 268413309 is 903314862.

It is not a de Polignac number, because 268413309 - 2⁴ = 268413293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268413319) 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, 106029 + ... + 108530.

It is an arithmetic number, because the mean of its divisors is an integer number (32541600).

Almost surely, 2^268413309 is an apocalyptic number.

It is an amenable number.

268413309 is a deficient number, since it is larger than the sum of its proper divisors (122085891).

268413309 is a wasteful number, since it uses less digits than its factorization.

268413309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214704 (or 214701 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 268413309 is about 16383.3241132561. The cubic root of 268413309 is about 645.0618365089.

The spelling of 268413309 in words is "two hundred sixty-eight million, four hundred thirteen thousand, three hundred nine".