404005038 has 16 divisors (see below), whose sum is σ = 826801536. Its totient is φ = 131536440.

The previous prime is 404005033. The next prime is 404005067. The reversal of 404005038 is 830500404.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 404004999 and 404005017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404005031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 782698 + ... + 783213.

It is an arithmetic number, because the mean of its divisors is an integer number (51675096).

Almost surely, 2^404005038 is an apocalyptic number.

404005038 is an abundant number, since it is smaller than the sum of its proper divisors (422796498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404005038 is a wasteful number, since it uses less digits than its factorization.

404005038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565959.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 404005038 is about 20099.8765667852. The cubic root of 404005038 is about 739.2572520650.

The spelling of 404005038 in words is "four hundred four million, five thousand, thirty-eight".