404899 has 4 divisors (see below), whose sum is σ = 441720. Its totient is φ = 368080.

The previous prime is 404851. The next prime is 404941. The reversal of 404899 is 998404.

404899 is nontrivially palindromic in base 2.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 404899 - 2⁹ = 404387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404819) 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, 18394 + ... + 18415.

It is an arithmetic number, because the mean of its divisors is an integer number (110430).

2⁴⁰⁴⁸⁹⁹ is an apocalyptic number.

404899 is a deficient number, since it is larger than the sum of its proper divisors (36821).

404899 is a wasteful number, since it uses less digits than its factorization.

404899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36820.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 404899 is about 636.3167450256. The cubic root of 404899 is about 73.9802114119.

Subtracting 404899 from its reverse (998404), we obtain a triangular number (593505 = T₁₀₈₉).

The spelling of 404899 in words is "four hundred four thousand, eight hundred ninety-nine".