20480908 has 48 divisors (see below), whose sum is σ = 42577920. Its totient is φ = 8438976.

The previous prime is 20480899. The next prime is 20480939. The reversal of 20480908 is 80908402.

20480908 is nontrivially palindromic in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 20480908.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103866 + ... + 104062.

It is an arithmetic number, because the mean of its divisors is an integer number (887040).

Almost surely, 2^20480908 is an apocalyptic number.

20480908 is a gapful number since it is divisible by the number (28) 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 20480908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21288960).

20480908 is an abundant number, since it is smaller than the sum of its proper divisors (22097012).

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

20480908 is a wasteful number, since it uses less digits than its factorization.

20480908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334 (or 332 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 20480908 is about 4525.5837192566. The cubic root of 20480908 is about 273.6001947891.

The spelling of 20480908 in words is "twenty million, four hundred eighty thousand, nine hundred eight".