405118 has 16 divisors (see below), whose sum is σ = 731520. Its totient is φ = 164376.

The previous prime is 405091. The next prime is 405143. The reversal of 405118 is 811504.

405118 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 405095 and 405104.

It is a congruent number.

It is an unprimeable number.

405118 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 496 + ... + 1027.

It is an arithmetic number, because the mean of its divisors is an integer number (45720).

2⁴⁰⁵¹¹⁸ is an apocalyptic number.

405118 is a deficient number, since it is larger than the sum of its proper divisors (326402).

405118 is a wasteful number, since it uses less digits than its factorization.

405118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 405118 is about 636.4888058717. The cubic root of 405118 is about 73.9935470390.

The spelling of 405118 in words is "four hundred five thousand, one hundred eighteen".