20752872 has 64 divisors (see below), whose sum is σ = 60528000. Its totient is φ = 5927040.

The previous prime is 20752843. The next prime is 20752873. The reversal of 20752872 is 27825702.

It is not an unprimeable number, because it can be changed into a prime (20752873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6972 + ... + 9492.

It is an arithmetic number, because the mean of its divisors is an integer number (945750).

Almost surely, 2^20752872 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 20752872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30264000).

20752872 is an abundant number, since it is smaller than the sum of its proper divisors (39775128).

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

20752872 is a wasteful number, since it uses less digits than its factorization.

20752872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2551 (or 2533 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 20752872 is about 4555.5320216194. The cubic root of 20752872 is about 274.8059104306.

The spelling of 20752872 in words is "twenty million, seven hundred fifty-two thousand, eight hundred seventy-two".