20574896 has 40 divisors (see below), whose sum is σ = 42876720. Its totient is φ = 9529344.

The previous prime is 20574887. The next prime is 20574899. The reversal of 20574896 is 69847502.

It is not an unprimeable number, because it can be changed into a prime (20574899) 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 7 ways as a sum of consecutive naturals, for example, 17660 + ... + 18788.

It is an arithmetic number, because the mean of its divisors is an integer number (1071918).

Almost surely, 2^20574896 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 20574896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21438360).

20574896 is an abundant number, since it is smaller than the sum of its proper divisors (22301824).

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

20574896 is a wasteful number, since it uses less digits than its factorization.

20574896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221 (or 1215 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 20574896 is about 4535.9559080749. The cubic root of 20574896 is about 274.0180782644.

The spelling of 20574896 in words is "twenty million, five hundred seventy-four thousand, eight hundred ninety-six".