20858482 has 12 divisors (see below), whose sum is σ = 32406426. Its totient is φ = 10068800.

The previous prime is 20858477. The next prime is 20858489. The reversal of 20858482 is 28485802.

It can be written as a sum of positive squares in 3 ways, for example, as 17214201 + 3644281 = 4149^2 + 1909^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20858489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4519 + ... + 7882.

Almost surely, 2^20858482 is an apocalyptic number.

20858482 is a deficient number, since it is larger than the sum of its proper divisors (11547944).

20858482 is a wasteful number, since it uses less digits than its factorization.

20858482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12461 (or 12432 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 37.

The square root of 20858482 is about 4567.1087133984. The cubic root of 20858482 is about 275.2712783105.

The spelling of 20858482 in words is "twenty million, eight hundred fifty-eight thousand, four hundred eighty-two".