268507806 has 32 divisors (see below), whose sum is σ = 614435328. Its totient is φ = 76628640.

The previous prime is 268507801. The next prime is 268507817. The reversal of 268507806 is 608705862.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268507801) 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, 39391 + ... + 45701.

It is an arithmetic number, because the mean of its divisors is an integer number (19201104).

Almost surely, 2^268507806 is an apocalyptic number.

268507806 is an abundant number, since it is smaller than the sum of its proper divisors (345927522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

268507806 is a wasteful number, since it uses less digits than its factorization.

268507806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7336.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 268507806 is about 16386.2077980233. The cubic root of 268507806 is about 645.1375273115.

The spelling of 268507806 in words is "two hundred sixty-eight million, five hundred seven thousand, eight hundred six".