20544160 has 192 divisors, whose sum is σ = 64012032. Its totient is φ = 6045696.

The previous prime is 20544119. The next prime is 20544169. The reversal of 20544160 is 6144502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20544169) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 247479 + ... + 247561.

It is an arithmetic number, because the mean of its divisors is an integer number (333396).

Almost surely, 2^20544160 is an apocalyptic number.

20544160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20544160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32006016).

20544160 is an abundant number, since it is smaller than the sum of its proper divisors (43467872).

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

20544160 is a wasteful number, since it uses less digits than its factorization.

20544160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 127 counting only the distinct ones).

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

The square root of 20544160 is about 4532.5666018273. The cubic root of 20544160 is about 273.8815621105.

Adding to 20544160 its reverse (6144502), we get a palindrome (26688662).

The spelling of 20544160 in words is "twenty million, five hundred forty-four thousand, one hundred sixty".