268323813 has 16 divisors (see below), whose sum is σ = 397924800. Its totient is φ = 178698960.

The previous prime is 268323787. The next prime is 268323823. The reversal of 268323813 is 318323862.

It is not a de Polignac number, because 268323813 - 2¹² = 268319717 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268323823) 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, 24903 + ... + 34011.

It is an arithmetic number, because the mean of its divisors is an integer number (24870300).

Almost surely, 2^268323813 is an apocalyptic number.

It is an amenable number.

268323813 is a deficient number, since it is larger than the sum of its proper divisors (129600987).

268323813 is a wasteful number, since it uses less digits than its factorization.

268323813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10209 (or 10203 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 268323813 is about 16380.5925716990. The cubic root of 268323813 is about 644.9901350573.

The spelling of 268323813 in words is "two hundred sixty-eight million, three hundred twenty-three thousand, eight hundred thirteen".