418285 has 32 divisors (see below), whose sum is σ = 656640. Its totient is φ = 248832.

The previous prime is 418279. The next prime is 418289. The reversal of 418285 is 582814.

418285 = T₁₈₉ + T₁₉₀ + ... + T₂₀₉.

418285 = 200² + 201² + ... + 209².

It is a 5-Lehmer number, since φ(418285) divides (418285-1)⁵.

It is a cyclic number.

It is not a de Polignac number, because 418285 - 2⁷ = 418157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (418289) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 11287 + ... + 11323.

It is an arithmetic number, because the mean of its divisors is an integer number (20520).

2⁴¹⁸²⁸⁵ is an apocalyptic number.

It is an amenable number.

418285 is a deficient number, since it is larger than the sum of its proper divisors (238355).

418285 is a wasteful number, since it uses less digits than its factorization.

418285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85.

The product of its digits is 2560, while the sum is 28.

The square root of 418285 is about 646.7495651332. The cubic root of 418285 is about 74.7866529418.

It can be divided in two parts, 418 and 285, that added together give a triangular number (703 = T₃₇).

The spelling of 418285 in words is "four hundred eighteen thousand, two hundred eighty-five".