320672 has 24 divisors (see below), whose sum is σ = 689472. Its totient is φ = 145600.

The previous prime is 320669. The next prime is 320687. The reversal of 320672 is 276023.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 320672.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104 + ... + 807.

It is an arithmetic number, because the mean of its divisors is an integer number (28728).

2³²⁰⁶⁷² is an apocalyptic number.

320672 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

320672 is an abundant number, since it is smaller than the sum of its proper divisors (368800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320672 is a wasteful number, since it uses less digits than its factorization.

320672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932 (or 924 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 320672 is about 566.2790831383. The cubic root of 320672 is about 68.4468837171.

Adding to 320672 its reverse (276023), we get a palindrome (596695).

The spelling of 320672 in words is "three hundred twenty thousand, six hundred seventy-two".