268599321 has 21 divisors (see below), whose sum is σ = 403379301. Its totient is φ = 178771212.

The previous prime is 268599311. The next prime is 268599341. The reversal of 268599321 is 123995862.

The square root of 268599321 is 16389.

It is a perfect power (a square), and thus also a powerful number.

268599321 is a `hidden beast` number, since 26 + 8 + 599 + 32 + 1 = 666.

It is not a de Polignac number, because 268599321 - 2⁹ = 268598809 is a prime.

It is a super-2 number, since 2×268599321² = 144291190483322082, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (268599311) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 442200 + ... + 442806.

Almost surely, 2^268599321 is an apocalyptic number.

268599321 is the 16389-th square number.

268599321 is the 8195-th centered octagonal number.

It is an amenable number.

268599321 is a deficient number, since it is larger than the sum of its proper divisors (134779980).

268599321 is an frugal number, since it uses more digits than its factorization.

268599321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232 (or 610 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The cubic root of 268599321 is about 645.2108126478.

The spelling of 268599321 in words is "two hundred sixty-eight million, five hundred ninety-nine thousand, three hundred twenty-one".