485820 has 36 divisors (see below), whose sum is σ = 1474200. Its totient is φ = 129504.

The previous prime is 485819. The next prime is 485827. The reversal of 485820 is 28584.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (485827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1170 + ... + 1529.

It is an arithmetic number, because the mean of its divisors is an integer number (40950).

2⁴⁸⁵⁸²⁰ is an apocalyptic number.

It is an amenable number.

485820 is an abundant number, since it is smaller than the sum of its proper divisors (988380).

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

485820 is a wasteful number, since it uses less digits than its factorization.

485820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2714 (or 2709 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 485820 is about 697.0078909166. The cubic root of 485820 is about 78.6125341781.

The spelling of 485820 in words is "four hundred eighty-five thousand, eight hundred twenty".