320268869 has 4 divisors (see below), whose sum is σ = 323262144. Its totient is φ = 317275596.

The previous prime is 320268841. The next prime is 320268881. The reversal of 320268869 is 968862023.

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 320268869 - 2¹² = 320264773 is a prime.

It is a super-2 number, since 2×320268869² = 205144296901078322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320268889) 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, 1496477 + ... + 1496690.

It is an arithmetic number, because the mean of its divisors is an integer number (80815536).

Almost surely, 2^320268869 is an apocalyptic number.

It is an amenable number.

320268869 is a deficient number, since it is larger than the sum of its proper divisors (2993275).

320268869 is a wasteful number, since it uses less digits than its factorization.

320268869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2993274.

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 320268869 is about 17896.0573590945. The cubic root of 320268869 is about 684.1818915112.

The spelling of 320268869 in words is "three hundred twenty million, two hundred sixty-eight thousand, eight hundred sixty-nine".