404454 has 8 divisors (see below), whose sum is σ = 808920. Its totient is φ = 134816.

The previous prime is 404449. The next prime is 404461. The reversal of 404454 is 454404.

It is a sphenic number, since it is the product of 3 distinct primes.

404454 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 404454.

It is a congruent number.

It is an unprimeable number.

404454 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 3 ways as a sum of consecutive naturals, for example, 33699 + ... + 33710.

It is an arithmetic number, because the mean of its divisors is an integer number (101115).

2⁴⁰⁴⁴⁵⁴ is an apocalyptic number.

404454 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

404454 is a wasteful number, since it uses less digits than its factorization.

404454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67414.

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 404454 is about 635.9669802749. The cubic root of 404454 is about 73.9530990851.

Adding to 404454 its reverse (454404), we get a palindrome (858858).

It can be divided in two parts, 404 and 454, that added together give a palindrome (858).

The spelling of 404454 in words is "four hundred four thousand, four hundred fifty-four".