404453 has 8 divisors (see below), whose sum is σ = 486720. Its totient is φ = 328320.

The previous prime is 404449. The next prime is 404461. The reversal of 404453 is 354404.

It is a happy number.

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

It is not a de Polignac number, because 404453 - 2² = 404449 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 404453.

It is not an unprimeable number, because it can be changed into a prime (404423) by changing a digit.

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, 1388 + ... + 1653.

It is an arithmetic number, because the mean of its divisors is an integer number (60840).

2⁴⁰⁴⁴⁵³ is an apocalyptic number.

It is an amenable number.

404453 is a deficient number, since it is larger than the sum of its proper divisors (82267).

404453 is a wasteful number, since it uses less digits than its factorization.

404453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3067.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 404453 is about 635.9661940701. The cubic root of 404453 is about 73.9530381362.

Adding to 404453 its reverse (354404), we get a palindrome (758857).

The spelling of 404453 in words is "four hundred four thousand, four hundred fifty-three".