20579412 has 72 divisors (see below), whose sum is σ = 57711360. Its totient is φ = 5685120.

The previous prime is 20579407. The next prime is 20579431. The reversal of 20579412 is 21497502.

It is a self number, because there is not a number n which added to its sum of digits gives 20579412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17664 + ... + 18792.

Almost surely, 2^20579412 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 20579412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28855680).

20579412 is an abundant number, since it is smaller than the sum of its proper divisors (37131948).

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

20579412 is a wasteful number, since it uses less digits than its factorization.

20579412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1181 (or 1172 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 20579412 is about 4536.4536810156. The cubic root of 20579412 is about 274.0381249452.

The spelling of 20579412 in words is "twenty million, five hundred seventy-nine thousand, four hundred twelve".