268544988 has 72 divisors (see below), whose sum is σ = 743586480. Its totient is φ = 81338880.

The previous prime is 268544977. The next prime is 268544989. The reversal of 268544988 is 889445862.

268544988 is a `hidden beast` number, since 2 + 6 + 8 + 544 + 98 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268544989) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10183 + ... + 25313.

It is an arithmetic number, because the mean of its divisors is an integer number (10327590).

Almost surely, 2^268544988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 268544988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371793240).

268544988 is an abundant number, since it is smaller than the sum of its proper divisors (475041492).

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

268544988 is a wasteful number, since it uses less digits than its factorization.

268544988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15187 (or 15182 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 54.

The square root of 268544988 is about 16387.3423104541. The cubic root of 268544988 is about 645.1673047157.

The spelling of 268544988 in words is "two hundred sixty-eight million, five hundred forty-four thousand, nine hundred eighty-eight".