20004828 has 24 divisors (see below), whose sum is σ = 47444880. Its totient is φ = 6558720.

The previous prime is 20004823. The next prime is 20004833. The reversal of 20004828 is 82840002.

It is an interprime number because it is at equal distance from previous prime (20004823) and next prime (20004833).

It is a junction number, because it is equal to n+sod(n) for n = 20004798 and 20004807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20004821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12933 + ... + 14396.

It is an arithmetic number, because the mean of its divisors is an integer number (1976870).

Almost surely, 2^20004828 is an apocalyptic number.

It is an amenable number.

20004828 is an abundant number, since it is smaller than the sum of its proper divisors (27440052).

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

20004828 is a wasteful number, since it uses less digits than its factorization.

20004828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27397 (or 27395 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 20004828 is about 4472.6757092371. The cubic root of 20004828 is about 271.4636019159.

The spelling of 20004828 in words is "twenty million, four thousand, eight hundred twenty-eight".