404498999 has 16 divisors (see below), whose sum is σ = 450593280. Its totient is φ = 361357920.

The previous prime is 404498957. The next prime is 404499013. The reversal of 404498999 is 999894404.

It is a cyclic number.

It is not a de Polignac number, because 404498999 - 2²⁰ = 403450423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404498909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24509 + ... + 37545.

It is an arithmetic number, because the mean of its divisors is an integer number (28162080).

Almost surely, 2^404498999 is an apocalyptic number.

404498999 is a deficient number, since it is larger than the sum of its proper divisors (46094281).

404498999 is a wasteful number, since it uses less digits than its factorization.

404498999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13150.

The product of its (nonzero) digits is 3359232, while the sum is 56.

The square root of 404498999 is about 20112.1604756923. The cubic root of 404498999 is about 739.5584162372.

The spelling of 404498999 in words is "four hundred four million, four hundred ninety-eight thousand, nine hundred ninety-nine".