481890 has 16 divisors (see below), whose sum is σ = 1156608. Its totient is φ = 128496.

The previous prime is 481883. The next prime is 481909. The reversal of 481890 is 98184.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 16063 = 481890 / (4 + 8 + 1 + 8 + 9 + 0).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 481890.

It is an unprimeable number.

481890 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8002 + ... + 8061.

It is an arithmetic number, because the mean of its divisors is an integer number (72288).

2⁴⁸¹⁸⁹⁰ is an apocalyptic number.

481890 is an abundant number, since it is smaller than the sum of its proper divisors (674718).

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

481890 is a wasteful number, since it uses less digits than its factorization.

481890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16073.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 481890 is about 694.1829729978. The cubic root of 481890 is about 78.3999835138.

The spelling of 481890 in words is "four hundred eighty-one thousand, eight hundred ninety".