400118 has 8 divisors (see below), whose sum is σ = 616512. Its totient is φ = 194616.

The previous prime is 400109. The next prime is 400123. The reversal of 400118 is 811004.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

400118 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, 2630 + ... + 2777.

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

2⁴⁰⁰¹¹⁸ is an apocalyptic number.

400118 is a deficient number, since it is larger than the sum of its proper divisors (216394).

400118 is a wasteful number, since it uses less digits than its factorization.

400118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5446.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 400118 is about 632.5488123457. The cubic root of 400118 is about 73.6878745224.

The spelling of 400118 in words is "four hundred thousand, one hundred eighteen".