109400418 has 24 divisors (see below), whose sum is σ = 237564288. Its totient is φ = 36385272.

The previous prime is 109400393. The next prime is 109400437. The reversal of 109400418 is 814004901.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 109400391 and 109400400.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1771 + ... + 14897.

It is an arithmetic number, because the mean of its divisors is an integer number (9898512).

Almost surely, 2^109400418 is an apocalyptic number.

109400418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

109400418 is an abundant number, since it is smaller than the sum of its proper divisors (128163870).

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

109400418 is a wasteful number, since it uses less digits than its factorization.

109400418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13598 (or 13595 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 109400418 is about 10459.4654739140. The cubic root of 109400418 is about 478.2698388312.

The spelling of 109400418 in words is "one hundred nine million, four hundred thousand, four hundred eighteen".