404455 has 8 divisors (see below), whose sum is σ = 506592. Its totient is φ = 309408.

The previous prime is 404449. The next prime is 404461. The reversal of 404455 is 554404.

It is an interprime number because it is at equal distance from previous prime (404449) and next prime (404461).

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

It is a cyclic number.

It is not a de Polignac number, because 404455 - 2⁵ = 404423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1644 + ... + 1873.

It is an arithmetic number, because the mean of its divisors is an integer number (63324).

2⁴⁰⁴⁴⁵⁵ is an apocalyptic number.

404455 is a deficient number, since it is larger than the sum of its proper divisors (102137).

404455 is a wasteful number, since it uses less digits than its factorization.

404455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3545.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 404455 is about 635.9677664788. The cubic root of 404455 is about 73.9531600340.

Adding to 404455 its reverse (554404), we get a palindrome (958859).

The spelling of 404455 in words is "four hundred four thousand, four hundred fifty-five".