404082 has 32 divisors (see below), whose sum is σ = 1027200. Its totient is φ = 115344.

The previous prime is 404081. The next prime is 404099. The reversal of 404082 is 280404.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (404081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157 + ... + 912.

It is an arithmetic number, because the mean of its divisors is an integer number (32100).

2⁴⁰⁴⁰⁸² is an apocalyptic number.

404082 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

404082 is an abundant number, since it is smaller than the sum of its proper divisors (623118).

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

404082 is a wasteful number, since it uses less digits than its factorization.

404082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087 (or 1081 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 404082 is about 635.6744449795. The cubic root of 404082 is about 73.9304191335.

Adding to 404082 its reverse (280404), we get a palindrome (684486).

The spelling of 404082 in words is "four hundred four thousand, eighty-two".