320486 has 4 divisors (see below), whose sum is σ = 480732. Its totient is φ = 160242.

The previous prime is 320483. The next prime is 320513. The reversal of 320486 is 684023.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×320486² = 205422552392, which contains 22 as substring.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80120 + ... + 80123.

It is an arithmetic number, because the mean of its divisors is an integer number (120183).

2³²⁰⁴⁸⁶ is an apocalyptic number.

320486 is a deficient number, since it is larger than the sum of its proper divisors (160246).

320486 is a wasteful number, since it uses less digits than its factorization.

320486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160245.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 320486 is about 566.1148293412. The cubic root of 320486 is about 68.4336473648.

The spelling of 320486 in words is "three hundred twenty thousand, four hundred eighty-six".