404826 has 16 divisors (see below), whose sum is σ = 818400. Its totient is φ = 133488.

The previous prime is 404819. The next prime is 404827. The reversal of 404826 is 628404.

It is a plaindrome in base 13.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 404796 and 404805.

It is not an unprimeable number, because it can be changed into a prime (404827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345 + ... + 963.

It is an arithmetic number, because the mean of its divisors is an integer number (51150).

2⁴⁰⁴⁸²⁶ is an apocalyptic number.

404826 is an abundant number, since it is smaller than the sum of its proper divisors (413574).

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

404826 is a wasteful number, since it uses less digits than its factorization.

404826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733.

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

The square root of 404826 is about 636.2593810703. The cubic root of 404826 is about 73.9757651344.

The spelling of 404826 in words is "four hundred four thousand, eight hundred twenty-six".