20828112 has 40 divisors (see below), whose sum is σ = 53969760. Its totient is φ = 6921600.

The previous prime is 20828107. The next prime is 20828147. The reversal of 20828112 is 21182802.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29362 + ... + 30062.

It is an arithmetic number, because the mean of its divisors is an integer number (1349244).

Almost surely, 2^20828112 is an apocalyptic number.

It is an amenable number.

20828112 is an abundant number, since it is smaller than the sum of its proper divisors (33141648).

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

20828112 is a wasteful number, since it uses less digits than its factorization.

20828112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331 (or 1325 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 20828112 is about 4563.7826416253. The cubic root of 20828112 is about 275.1376148702.

The spelling of 20828112 in words is "twenty million, eight hundred twenty-eight thousand, one hundred twelve".