268328520 has 48 divisors (see below), whose sum is σ = 872068860. Its totient is φ = 71554176.

The previous prime is 268328399. The next prime is 268328531. The reversal of 268328520 is 25823862.

It can be written as a sum of positive squares in 2 ways, for example, as 266538276 + 1790244 = 16326^2 + 1338^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 372319 + ... + 373038.

Almost surely, 2^268328520 is an apocalyptic number.

268328520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268328520 is an abundant number, since it is smaller than the sum of its proper divisors (603740340).

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

268328520 is a wasteful number, since it uses less digits than its factorization.

268328520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745374 (or 745367 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 268328520 is about 16380.7362471899. The cubic root of 268328520 is about 644.9939065586.

The spelling of 268328520 in words is "two hundred sixty-eight million, three hundred twenty-eight thousand, five hundred twenty".