320319969 has 8 divisors (see below), whose sum is σ = 435151872. Its totient is φ = 209517360.

The previous prime is 320319959. The next prime is 320319973. The reversal of 320319969 is 969913023.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 320319969 - 2⁴ = 320319953 is a prime.

It is a super-2 number, since 2×320319969² = 205209765080321922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 320319969.

It is not an unprimeable number, because it can be changed into a prime (320319959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1007137 + ... + 1007454.

It is an arithmetic number, because the mean of its divisors is an integer number (54393984).

Almost surely, 2^320319969 is an apocalyptic number.

It is an amenable number.

320319969 is a deficient number, since it is larger than the sum of its proper divisors (114831903).

320319969 is a wasteful number, since it uses less digits than its factorization.

320319969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2014647.

The product of its (nonzero) digits is 78732, while the sum is 42.

The square root of 320319969 is about 17897.4849909142. The cubic root of 320319969 is about 684.2182774344.

The spelling of 320319969 in words is "three hundred twenty million, three hundred nineteen thousand, nine hundred sixty-nine".