109808080 has 40 divisors (see below), whose sum is σ = 256124232. Its totient is φ = 43782144.

The previous prime is 109808077. The next prime is 109808093. The reversal of 109808080 is 80808901.

It can be written as a sum of positive squares in 4 ways, for example, as 61504 + 109746576 = 248^2 + 10476^2 .

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 (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24924 + ... + 28996.

Almost surely, 2^109808080 is an apocalyptic number.

109808080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109808080 is an abundant number, since it is smaller than the sum of its proper divisors (146316152).

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

109808080 is a wasteful number, since it uses less digits than its factorization.

109808080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4423 (or 4417 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 34.

The square root of 109808080 is about 10478.9350603962. The cubic root of 109808080 is about 478.8631661253.

The spelling of 109808080 in words is "one hundred nine million, eight hundred eight thousand, eighty".