808808080 has 40 divisors (see below), whose sum is σ = 1882004544. Its totient is φ = 323260800.

The previous prime is 808808071. The next prime is 808808081. The reversal of 808808080 is 80808808.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (808808081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117535 + ... + 124225.

Almost surely, 2^808808080 is an apocalyptic number.

808808080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

808808080 is an abundant number, since it is smaller than the sum of its proper divisors (1073196464).

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

808808080 is a wasteful number, since it uses less digits than its factorization.

808808080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8215 (or 8209 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 40.

The square root of 808808080 is about 28439.5513326072. The cubic root of 808808080 is about 931.7122961485.

The spelling of 808808080 in words is "eight hundred eight million, eight hundred eight thousand, eighty".