404004022 has 8 divisors (see below), whose sum is σ = 606434400. Its totient is φ = 201859224.

The previous prime is 404003983. The next prime is 404004023. The reversal of 404004022 is 220400404.

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 = 404003987 and 404004005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404004023) 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, 67822 + ... + 73537.

It is an arithmetic number, because the mean of its divisors is an integer number (75804300).

Almost surely, 2^404004022 is an apocalyptic number.

404004022 is a deficient number, since it is larger than the sum of its proper divisors (202430378).

404004022 is a wasteful number, since it uses less digits than its factorization.

404004022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142790.

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

The square root of 404004022 is about 20099.8512929822. The cubic root of 404004022 is about 739.2566323648.

Adding to 404004022 its reverse (220400404), we get a palindrome (624404426).

It can be divided in two parts, 40400402 and 2, that added together give a palindrome (40400404).

The spelling of 404004022 in words is "four hundred four million, four thousand, twenty-two".