404020222 has 8 divisors (see below), whose sum is σ = 606236400. Its totient is φ = 201941424.

The previous prime is 404020193. The next prime is 404020223. The reversal of 404020222 is 222020404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 404020196 and 404020205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404020223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26647 + ... + 38962.

It is an arithmetic number, because the mean of its divisors is an integer number (75779550).

Almost surely, 2^404020222 is an apocalyptic number.

404020222 is a deficient number, since it is larger than the sum of its proper divisors (202216178).

404020222 is a wasteful number, since it uses less digits than its factorization.

404020222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68690.

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 404020222 is about 20100.2542769986. The cubic root of 404020222 is about 739.2665132874.

Adding to 404020222 its reverse (222020404), we get a palindrome (626040626).

The spelling of 404020222 in words is "four hundred four million, twenty thousand, two hundred twenty-two".