268554660 has 144 divisors (see below), whose sum is σ = 839776896. Its totient is φ = 64064000.

The previous prime is 268554641. The next prime is 268554667. The reversal of 268554660 is 66455862.

It is not an unprimeable number, because it can be changed into a prime (268554667) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 515200 + ... + 515720.

It is an arithmetic number, because the mean of its divisors is an integer number (5831784).

Almost surely, 2^268554660 is an apocalyptic number.

268554660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 268554660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (419888448).

268554660 is an abundant number, since it is smaller than the sum of its proper divisors (571222236).

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

268554660 is a wasteful number, since it uses less digits than its factorization.

268554660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626 (or 613 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The square root of 268554660 is about 16387.6374136115. The cubic root of 268554660 is about 645.1750501383.

The spelling of 268554660 in words is "two hundred sixty-eight million, five hundred fifty-four thousand, six hundred sixty".