409118 has 8 divisors (see below), whose sum is σ = 616512. Its totient is φ = 203616.

The previous prime is 409099. The next prime is 409121. The reversal of 409118 is 811904.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 409093 and 409102.

It is a congruent number.

It is an unprimeable number.

409118 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 3 ways as a sum of consecutive naturals, for example, 371 + ... + 977.

It is an arithmetic number, because the mean of its divisors is an integer number (77064).

2⁴⁰⁹¹¹⁸ is an apocalyptic number.

409118 is a deficient number, since it is larger than the sum of its proper divisors (207394).

409118 is a wasteful number, since it uses less digits than its factorization.

409118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946.

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

The square root of 409118 is about 639.6233266541. The cubic root of 409118 is about 74.2362790988.

The spelling of 409118 in words is "four hundred nine thousand, one hundred eighteen".