20544016 has 20 divisors (see below), whose sum is σ = 41899600. Its totient is φ = 9731232.

The previous prime is 20544011. The next prime is 20544023. The reversal of 20544016 is 61044502.

It is not an unprimeable number, because it can be changed into a prime (20544011) 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 3 ways as a sum of consecutive naturals, for example, 33486 + ... + 34093.

It is an arithmetic number, because the mean of its divisors is an integer number (2094980).

Almost surely, 2^20544016 is an apocalyptic number.

It is an amenable number.

20544016 is an abundant number, since it is smaller than the sum of its proper divisors (21355584).

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

20544016 is a wasteful number, since it uses less digits than its factorization.

20544016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67606 (or 67600 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 20544016 is about 4532.5507167598. The cubic root of 20544016 is about 273.8809222038.

Adding to 20544016 its reverse (61044502), we get a palindrome (81588518).

The spelling of 20544016 in words is "twenty million, five hundred forty-four thousand, sixteen".