20711448 has 48 divisors (see below), whose sum is σ = 56336280. Its totient is φ = 6873984.

The previous prime is 20711413. The next prime is 20711459. The reversal of 20711448 is 84411702.

20711448 is a `hidden beast` number, since 207 + 11 + 448 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21636 + ... + 22572.

Almost surely, 2^20711448 is an apocalyptic number.

It is an amenable number.

20711448 is an abundant number, since it is smaller than the sum of its proper divisors (35624832).

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

20711448 is a wasteful number, since it uses less digits than its factorization.

20711448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256 (or 1249 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 20711448 is about 4550.9831904765. The cubic root of 20711448 is about 274.6229455131.

The spelling of 20711448 in words is "twenty million, seven hundred eleven thousand, four hundred forty-eight".