268513520 has 60 divisors (see below), whose sum is σ = 686232120. Its totient is φ = 97637760.

The previous prime is 268513519. The next prime is 268513571. The reversal of 268513520 is 25315862.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4190 + ... + 23549.

It is an arithmetic number, because the mean of its divisors is an integer number (11437202).

Almost surely, 2^268513520 is an apocalyptic number.

268513520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268513520 is an abundant number, since it is smaller than the sum of its proper divisors (417718600).

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

268513520 is a wasteful number, since it uses less digits than its factorization.

268513520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27774 (or 27757 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 268513520 is about 16386.3821510424. The cubic root of 268513520 is about 645.1421035778.

The spelling of 268513520 in words is "two hundred sixty-eight million, five hundred thirteen thousand, five hundred twenty".