20582828 has 24 divisors (see below), whose sum is σ = 41298432. Its totient is φ = 8792784.

The previous prime is 20582827. The next prime is 20582867. The reversal of 20582828 is 82828502.

It is not an unprimeable number, because it can be changed into a prime (20582827) by changing a digit.

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, 9275 + ... + 11277.

It is an arithmetic number, because the mean of its divisors is an integer number (1720768).

Almost surely, 2^20582828 is an apocalyptic number.

20582828 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20582828 is an abundant number, since it is smaller than the sum of its proper divisors (20715604).

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

20582828 is a wasteful number, since it uses less digits than its factorization.

20582828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2381 (or 2379 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 35.

The square root of 20582828 is about 4536.8301709453. The cubic root of 20582828 is about 274.0532867397.

The spelling of 20582828 in words is "twenty million, five hundred eighty-two thousand, eight hundred twenty-eight".