404842017 has 4 divisors (see below), whose sum is σ = 539789360. Its totient is φ = 269894676.

The previous prime is 404842003. The next prime is 404842019. The reversal of 404842017 is 710248404.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 404842017 - 2⁶ = 404841953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404842019) 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, 67473667 + ... + 67473672.

It is an arithmetic number, because the mean of its divisors is an integer number (134947340).

Almost surely, 2^404842017 is an apocalyptic number.

It is an amenable number.

404842017 is a deficient number, since it is larger than the sum of its proper divisors (134947343).

404842017 is a wasteful number, since it uses less digits than its factorization.

404842017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134947342.

The product of its (nonzero) digits is 7168, while the sum is 30.

The square root of 404842017 is about 20120.6862954523. The cubic root of 404842017 is about 739.7674074215.

The spelling of 404842017 in words is "four hundred four million, eight hundred forty-two thousand, seventeen".