320838469 has 4 divisors (see below), whose sum is σ = 366672544. Its totient is φ = 275004396.

The previous prime is 320838457. The next prime is 320838473. The reversal of 320838469 is 964838023.

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, and also an emirpimes, since its reverse is a distinct semiprime: 964838023 = 53 ⋅18204491.

It is a cyclic number.

It is not a de Polignac number, because 320838469 - 2⁷ = 320838341 is a prime.

It is a super-2 number, since 2×320838469² = 205874646380527922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320835469) 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, 22917027 + ... + 22917040.

It is an arithmetic number, because the mean of its divisors is an integer number (91668136).

Almost surely, 2^320838469 is an apocalyptic number.

It is an amenable number.

320838469 is a deficient number, since it is larger than the sum of its proper divisors (45834075).

320838469 is an equidigital number, since it uses as much as digits as its factorization.

320838469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45834074.

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 320838469 is about 17911.9644092992. The cubic root of 320838469 is about 684.5872584151.

The spelling of 320838469 in words is "three hundred twenty million, eight hundred thirty-eight thousand, four hundred sixty-nine".