404901 has 12 divisors (see below), whose sum is σ = 668512. Its totient is φ = 231336.

The previous prime is 404851. The next prime is 404941. The reversal of 404901 is 109404.

It is not a de Polignac number, because 404901 - 2⁶ = 404837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3151 + ... + 3276.

2⁴⁰⁴⁹⁰¹ is an apocalyptic number.

It is an amenable number.

404901 is a deficient number, since it is larger than the sum of its proper divisors (263611).

404901 is a wasteful number, since it uses less digits than its factorization.

404901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6440 (or 6437 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 404901 is about 636.3183165681. The cubic root of 404901 is about 73.9803332202.

The spelling of 404901 in words is "four hundred four thousand, nine hundred one".