20848716 has 108 divisors (see below), whose sum is σ = 62741952. Its totient is φ = 5818176.

The previous prime is 20848703. The next prime is 20848733. The reversal of 20848716 is 61784802.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 93381 + ... + 93603.

It is an arithmetic number, because the mean of its divisors is an integer number (580944).

Almost surely, 2^20848716 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20848716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31370976).

20848716 is an abundant number, since it is smaller than the sum of its proper divisors (41893236).

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

20848716 is a wasteful number, since it uses less digits than its factorization.

20848716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300 (or 288 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 20848716 is about 4566.0394216432. The cubic root of 20848716 is about 275.2283106748.

The spelling of 20848716 in words is "twenty million, eight hundred forty-eight thousand, seven hundred sixteen".