404232217 has 4 divisors (see below), whose sum is σ = 404356480. Its totient is φ = 404107956.

The previous prime is 404232193. The next prime is 404232229. The reversal of 404232217 is 712232404.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 404232217 - 2¹⁹ = 403707929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 404232191 and 404232200.

It is not an unprimeable number, because it can be changed into a prime (404232617) 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, 57117 + ... + 63802.

It is an arithmetic number, because the mean of its divisors is an integer number (101089120).

Almost surely, 2^404232217 is an apocalyptic number.

It is an amenable number.

404232217 is a deficient number, since it is larger than the sum of its proper divisors (124263).

404232217 is a wasteful number, since it uses less digits than its factorization.

404232217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124262.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 404232217 is about 20105.5270261687. The cubic root of 404232217 is about 739.3957918010.

The spelling of 404232217 in words is "four hundred four million, two hundred thirty-two thousand, two hundred seventeen".