404286 has 16 divisors (see below), whose sum is σ = 827904. Its totient is φ = 131544.

The previous prime is 404273. The next prime is 404291. The reversal of 404286 is 682404.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 526 + ... + 1041.

It is an arithmetic number, because the mean of its divisors is an integer number (51744).

2⁴⁰⁴²⁸⁶ is an apocalyptic number.

404286 is an abundant number, since it is smaller than the sum of its proper divisors (423618).

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

404286 is a wasteful number, since it uses less digits than its factorization.

404286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1615.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 404286 is about 635.8348842270. The cubic root of 404286 is about 73.9428582491.

The spelling of 404286 in words is "four hundred four thousand, two hundred eighty-six".