20483808 has 48 divisors (see below), whose sum is σ = 55512576. Its totient is φ = 6606720.

The previous prime is 20483807. The next prime is 20483809. The reversal of 20483808 is 80838402.

It is an interprime number because it is at equal distance from previous prime (20483807) and next prime (20483809).

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20483803) 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 7 ways as a sum of consecutive naturals, for example, 466 + ... + 6417.

It is an arithmetic number, because the mean of its divisors is an integer number (1156512).

Almost surely, 2^20483808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20483808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27756288).

20483808 is an abundant number, since it is smaller than the sum of its proper divisors (35028768).

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

20483808 is a wasteful number, since it uses less digits than its factorization.

20483808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6927 (or 6919 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 20483808 is about 4525.9041085732. The cubic root of 20483808 is about 273.6131076789.

The spelling of 20483808 in words is "twenty million, four hundred eighty-three thousand, eight hundred eight".