268440680 has 16 divisors (see below), whose sum is σ = 603991620. Its totient is φ = 107376256.

The previous prime is 268440673. The next prime is 268440691. The reversal of 268440680 is 86044862.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 268369924 + 70756 = 16382^2 + 266^2 .

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, 3355469 + ... + 3355548.

Almost surely, 2^268440680 is an apocalyptic number.

268440680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268440680 is an abundant number, since it is smaller than the sum of its proper divisors (335550940).

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

268440680 is a wasteful number, since it uses less digits than its factorization.

268440680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6711028 (or 6711024 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 38.

The square root of 268440680 is about 16384.1594230525. The cubic root of 268440680 is about 645.0837621323.

The spelling of 268440680 in words is "two hundred sixty-eight million, four hundred forty thousand, six hundred eighty".