404408003 has 4 divisors (see below), whose sum is σ = 404559888. Its totient is φ = 404256120.

The previous prime is 404407957. The next prime is 404408029. The reversal of 404408003 is 300804404.

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 404408003 - 2¹² = 404403907 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 404408003.

It is not an unprimeable number, because it can be changed into a prime (404408083) 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 3 ways as a sum of consecutive naturals, for example, 71876 + ... + 77297.

It is an arithmetic number, because the mean of its divisors is an integer number (101139972).

Almost surely, 2^404408003 is an apocalyptic number.

404408003 is a deficient number, since it is larger than the sum of its proper divisors (151885).

404408003 is a wasteful number, since it uses less digits than its factorization.

404408003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151884.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 404408003 is about 20109.8981349981. The cubic root of 404408003 is about 739.5029551155.

The spelling of 404408003 in words is "four hundred four million, four hundred eight thousand, three".