20579452 has 24 divisors (see below), whose sum is σ = 38710224. Its totient is φ = 9537792.

The previous prime is 20579431. The next prime is 20579453. The reversal of 20579452 is 25497502.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20579453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2298 + ... + 6814.

It is an arithmetic number, because the mean of its divisors is an integer number (1612926).

Almost surely, 2^20579452 is an apocalyptic number.

It is an amenable number.

20579452 is a deficient number, since it is larger than the sum of its proper divisors (18130772).

20579452 is a wasteful number, since it uses less digits than its factorization.

20579452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4605 (or 4603 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 20579452 is about 4536.4580897436. The cubic root of 20579452 is about 274.0383024935.

The spelling of 20579452 in words is "twenty million, five hundred seventy-nine thousand, four hundred fifty-two".