481990 has 16 divisors (see below), whose sum is σ = 875952. Its totient is φ = 190944.

The previous prime is 481963. The next prime is 481997. The reversal of 481990 is 99184.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481997) by changing a digit.

481990 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 in 7 ways as a sum of consecutive naturals, for example, 1417 + ... + 1723.

It is an arithmetic number, because the mean of its divisors is an integer number (54747).

2⁴⁸¹⁹⁹⁰ is an apocalyptic number.

481990 is a deficient number, since it is larger than the sum of its proper divisors (393962).

481990 is a wasteful number, since it uses less digits than its factorization.

481990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 481990 is about 694.2549963810. The cubic root of 481990 is about 78.4054062286.

The spelling of 481990 in words is "four hundred eighty-one thousand, nine hundred ninety".