404284 has 12 divisors (see below), whose sum is σ = 721224. Its totient is φ = 198224.

The previous prime is 404273. The next prime is 404291. The reversal of 404284 is 482404.

It is a congruent number.

It is an unprimeable number.

404284 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 3 ways as a sum of consecutive naturals, for example, 742 + ... + 1165.

It is an arithmetic number, because the mean of its divisors is an integer number (60102).

2⁴⁰⁴²⁸⁴ is an apocalyptic number.

It is an amenable number.

404284 is a deficient number, since it is larger than the sum of its proper divisors (316940).

404284 is a wasteful number, since it uses less digits than its factorization.

404284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1964 (or 1962 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 404284 is about 635.8333114897. The cubic root of 404284 is about 73.9427363173.

Adding to 404284 its reverse (482404), we get a palindrome (886688).

The spelling of 404284 in words is "four hundred four thousand, two hundred eighty-four".