80808880 has 40 divisors (see below), whose sum is σ = 189063792. Its totient is φ = 32120064.

The previous prime is 80808869. The next prime is 80808887. The reversal of 80808880 is 8880808.

It is a happy number.

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

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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 (80808887) 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, 9942 + ... + 16138.

Almost surely, 2^80808880 is an apocalyptic number.

80808880 is a gapful number since it is divisible by the number (80) 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 80808880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94531896).

80808880 is an abundant number, since it is smaller than the sum of its proper divisors (108254912).

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

80808880 is a wasteful number, since it uses less digits than its factorization.

80808880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6373 (or 6367 counting only the distinct ones).

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

The square root of 80808880 is about 8989.3759516443. The cubic root of 80808880 is about 432.3343034180.

The spelling of 80808880 in words is "eighty million, eight hundred eight thousand, eight hundred eighty".