109808378 has 16 divisors (see below), whose sum is σ = 171075240. Its totient is φ = 52816896.

The previous prime is 109808359. The next prime is 109808401. The reversal of 109808378 is 873808901.

It can be written as a sum of positive squares in 4 ways, for example, as 109265209 + 543169 = 10453^2 + 737^2 .

It is a Curzon 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, 1751 + ... + 14922.

Almost surely, 2^109808378 is an apocalyptic number.

109808378 is a deficient number, since it is larger than the sum of its proper divisors (61266862).

109808378 is a wasteful number, since it uses less digits than its factorization.

109808378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16801.

The product of its (nonzero) digits is 96768, while the sum is 44.

The square root of 109808378 is about 10478.9492793887. The cubic root of 109808378 is about 478.8635993087.

The spelling of 109808378 in words is "one hundred nine million, eight hundred eight thousand, three hundred seventy-eight".