20382828 has 12 divisors (see below), whose sum is σ = 47559960. Its totient is φ = 6794272.

The previous prime is 20382823. The next prime is 20382833. The reversal of 20382828 is 82828302.

It is an interprime number because it is at equal distance from previous prime (20382823) and next prime (20382833).

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (20382823) 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 3 ways as a sum of consecutive naturals, for example, 849273 + ... + 849296.

It is an arithmetic number, because the mean of its divisors is an integer number (3963330).

Almost surely, 2^20382828 is an apocalyptic number.

It is an amenable number.

20382828 is an abundant number, since it is smaller than the sum of its proper divisors (27177132).

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

20382828 is a wasteful number, since it uses less digits than its factorization.

20382828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1698576 (or 1698574 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 20382828 is about 4514.7345436914. The cubic root of 20382828 is about 273.1627523146.

The spelling of 20382828 in words is "twenty million, three hundred eighty-two thousand, eight hundred twenty-eight".