268724813 has 8 divisors (see below), whose sum is σ = 308257920. Its totient is φ = 229477680.

The previous prime is 268724789. The next prime is 268724839. The reversal of 268724813 is 318427862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 268724813 - 2⁸ = 268724557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268724843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69473 + ... + 73238.

It is an arithmetic number, because the mean of its divisors is an integer number (38532240).

Almost surely, 2^268724813 is an apocalyptic number.

It is an amenable number.

268724813 is a deficient number, since it is larger than the sum of its proper divisors (39533107).

268724813 is a wasteful number, since it uses less digits than its factorization.

268724813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142987.

The product of its digits is 129024, while the sum is 41.

The square root of 268724813 is about 16392.8280964573. The cubic root of 268724813 is about 645.3112797531.

The spelling of 268724813 in words is "two hundred sixty-eight million, seven hundred twenty-four thousand, eight hundred thirteen".