20108480 has 112 divisors (see below), whose sum is σ = 56180736. Its totient is φ = 6712320.

The previous prime is 20108461. The next prime is 20108483. The reversal of 20108480 is 8480102.

It is a tau number, because it is divible by the number of its divisors (112).

It is not an unprimeable number, because it can be changed into a prime (20108483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105185 + ... + 105375.

Almost surely, 2^20108480 is an apocalyptic number.

20108480 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 20108480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28090368).

20108480 is an abundant number, since it is smaller than the sum of its proper divisors (36072256).

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

20108480 is a wasteful number, since it uses less digits than its factorization.

20108480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262 (or 252 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 20108480 is about 4484.2479860061. The cubic root of 20108480 is about 271.9316437225.

Adding to 20108480 its reverse (8480102), we get a palindrome (28588582).

The spelling of 20108480 in words is "twenty million, one hundred eight thousand, four hundred eighty".