20789952 has 112 divisors (see below), whose sum is σ = 59740800. Its totient is φ = 6359040.

The previous prime is 20789927. The next prime is 20790017. The reversal of 20789952 is 25998702.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149499 + ... + 149637.

It is an arithmetic number, because the mean of its divisors is an integer number (533400).

Almost surely, 2^20789952 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 20789952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29870400).

20789952 is an abundant number, since it is smaller than the sum of its proper divisors (38950848).

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

20789952 is a wasteful number, since it uses less digits than its factorization.

20789952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 20789952 is about 4559.5999824546. The cubic root of 20789952 is about 274.9694820129.

The spelling of 20789952 in words is "twenty million, seven hundred eighty-nine thousand, nine hundred fifty-two".