404421502144043 has 4 divisors (see below), whose sum is σ = 405132260496360. Its totient is φ = 403710743791728.

The previous prime is 404421502143983. The next prime is 404421502144067. The reversal of 404421502144043 is 340441205124404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 404421502144043 - 2¹⁴ = 404421502127659 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 404421502143988 and 404421502144006.

It is not an unprimeable number, because it can be changed into a prime (404421502144243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355379175305 + ... + 355379176442.

It is an arithmetic number, because the mean of its divisors is an integer number (101283065124090).

Almost surely, 2^{404421502144043} is an apocalyptic number.

404421502144043 is a deficient number, since it is larger than the sum of its proper divisors (710758352317).

404421502144043 is an equidigital number, since it uses as much as digits as its factorization.

404421502144043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710758352316.

The product of its (nonzero) digits is 245760, while the sum is 38.

Adding to 404421502144043 its reverse (340441205124404), we get a palindrome (744862707268447).

The spelling of 404421502144043 in words is "four hundred four trillion, four hundred twenty-one billion, five hundred two million, one hundred forty-four thousand, forty-three".