20482 has 24 divisors (see below), whose sum is σ = 41040. Its totient is φ = 7560.

The previous prime is 20479. The next prime is 20483. The reversal of 20482 is 28402.

20482 is an admirable number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (20483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1069 + ... + 1087.

It is an arithmetic number, because the mean of its divisors is an integer number (1710).

2²⁰⁴⁸² is an apocalyptic number.

20482 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20482 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20520).

20482 is a wasteful number, since it uses less digits than its factorization.

20482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46 (or 39 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 20482 is about 143.1153381018. The cubic root of 20482 is about 27.3605057303.

Adding to 20482 its reverse (28402), we get a palindrome (48884).

It can be divided in two parts, 2048 and 2, that multiplied together give a 12-th power (4096 = 2¹²).

The spelling of 20482 in words is "twenty thousand, four hundred eighty-two".