20712882 has 16 divisors (see below), whose sum is σ = 41503392. Its totient is φ = 6891360.

The previous prime is 20712871. The next prime is 20712883. The reversal of 20712882 is 28821702.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20712883) 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, 582 + ... + 6462.

It is an arithmetic number, because the mean of its divisors is an integer number (2593962).

Almost surely, 2^20712882 is an apocalyptic number.

20712882 is an abundant number, since it is smaller than the sum of its proper divisors (20790510).

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

20712882 is a wasteful number, since it uses less digits than its factorization.

20712882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6473.

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 20712882 is about 4551.1407361232. The cubic root of 20712882 is about 274.6292833963.

The spelling of 20712882 in words is "twenty million, seven hundred twelve thousand, eight hundred eighty-two".