20080808 has 64 divisors (see below), whose sum is σ = 44997120. Its totient is φ = 8294400.

The previous prime is 20080783. The next prime is 20080811. The reversal of 20080808 is 80808002.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

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, 46160 + ... + 46592.

It is an arithmetic number, because the mean of its divisors is an integer number (703080).

Almost surely, 2^20080808 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 20080808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22498560).

20080808 is an abundant number, since it is smaller than the sum of its proper divisors (24916312).

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

20080808 is a wasteful number, since it uses less digits than its factorization.

20080808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498 (or 494 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 20080808 is about 4481.1614565869. The cubic root of 20080808 is about 271.8068481662.

The spelling of 20080808 in words is "twenty million, eighty thousand, eight hundred eight".