404801 has 4 divisors (see below), whose sum is σ = 406272. Its totient is φ = 403332.

The previous prime is 404783. The next prime is 404819. The reversal of 404801 is 108404.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (404783) and next prime (404819).

It is a cyclic number.

It is not a de Polignac number, because 404801 - 2¹⁸ = 142657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 404801.

It is not an unprimeable number, because it can be changed into a prime (404851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185 + ... + 918.

It is an arithmetic number, because the mean of its divisors is an integer number (101568).

2⁴⁰⁴⁸⁰¹ is an apocalyptic number.

It is an amenable number.

404801 is a deficient number, since it is larger than the sum of its proper divisors (1471).

404801 is a wasteful number, since it uses less digits than its factorization.

404801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1470.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 404801 is about 636.2397346913. The cubic root of 404801 is about 73.9742423137.

The spelling of 404801 in words is "four hundred four thousand, eight hundred one".