268998369 has 4 divisors (see below), whose sum is σ = 358664496. Its totient is φ = 179332244.

The previous prime is 268998337. The next prime is 268998467. The reversal of 268998369 is 963899862.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 268998369 - 2⁵ = 268998337 is a prime.

It is a super-2 number, since 2×268998369² = 144720245049320322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (268998329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44833059 + ... + 44833064.

It is an arithmetic number, because the mean of its divisors is an integer number (89666124).

Almost surely, 2^268998369 is an apocalyptic number.

It is an amenable number.

268998369 is a deficient number, since it is larger than the sum of its proper divisors (89666127).

268998369 is an equidigital number, since it uses as much as digits as its factorization.

268998369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89666126.

The product of its digits is 10077696, while the sum is 60.

The square root of 268998369 is about 16401.1697448688. The cubic root of 268998369 is about 645.5301764297.

The spelling of 268998369 in words is "two hundred sixty-eight million, nine hundred ninety-eight thousand, three hundred sixty-nine".