268622660 has 12 divisors (see below), whose sum is σ = 564107628. Its totient is φ = 107449056.

The previous prime is 268622659. The next prime is 268622687. The reversal of 268622660 is 66226862.

It can be written as a sum of positive squares in 2 ways, for example, as 157151296 + 111471364 = 12536^2 + 10558^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6715547 + ... + 6715586.

It is an arithmetic number, because the mean of its divisors is an integer number (47008969).

Almost surely, 2^268622660 is an apocalyptic number.

268622660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268622660 is an abundant number, since it is smaller than the sum of its proper divisors (295484968).

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

268622660 is a wasteful number, since it uses less digits than its factorization.

268622660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13431142 (or 13431140 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 268622660 is about 16389.7120169941. The cubic root of 268622660 is about 645.2294998867.

The spelling of 268622660 in words is "two hundred sixty-eight million, six hundred twenty-two thousand, six hundred sixty".