109408100 has 18 divisors (see below), whose sum is σ = 237415794. Its totient is φ = 43763200.

The previous prime is 109408081. The next prime is 109408111. The reversal of 109408100 is 1804901.

It can be written as a sum of positive squares in 3 ways, for example, as 2119936 + 107288164 = 1456^2 + 10358^2 .

It is a super-2 number, since 2×109408100² = 23940264691220000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 546941 + ... + 547140.

Almost surely, 2^109408100 is an apocalyptic number.

109408100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109408100 is an abundant number, since it is smaller than the sum of its proper divisors (128007694).

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

109408100 is a wasteful number, since it uses less digits than its factorization.

109408100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094095 (or 1094088 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 109408100 is about 10459.8326946467. The cubic root of 109408100 is about 478.2810331300.

The spelling of 109408100 in words is "one hundred nine million, four hundred eight thousand, one hundred".