320004 has 24 divisors (see below), whose sum is σ = 829920. Its totient is φ = 106632.

The previous prime is 319993. The next prime is 320009. The reversal of 320004 is 400023.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (320009) 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, 1374 + ... + 1589.

It is an arithmetic number, because the mean of its divisors is an integer number (34580).

2³²⁰⁰⁰⁴ is an apocalyptic number.

It is an amenable number.

320004 is an abundant number, since it is smaller than the sum of its proper divisors (509916).

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

320004 is a wasteful number, since it uses less digits than its factorization.

320004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2976 (or 2968 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 320004 is about 565.6889604721. The cubic root of 320004 is about 68.3993228619.

Adding to 320004 its reverse (400023), we get a palindrome (720027).

The spelling of 320004 in words is "three hundred twenty thousand, four", and thus it is an iban number.