20000828 has 24 divisors (see below), whose sum is σ = 36511104. Its totient is φ = 9576000.

The previous prime is 20000821. The next prime is 20000837. The reversal of 20000828 is 82800002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000821) 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, 11726 + ... + 13322.

It is an arithmetic number, because the mean of its divisors is an integer number (1521296).

Almost surely, 2^20000828 is an apocalyptic number.

It is an amenable number.

20000828 is a deficient number, since it is larger than the sum of its proper divisors (16510276).

20000828 is a wasteful number, since it uses less digits than its factorization.

20000828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1733 (or 1731 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 20000828 is about 4472.2285272557. The cubic root of 20000828 is about 271.4455075041.

The spelling of 20000828 in words is "twenty million, eight hundred twenty-eight", and thus it is an aban number.