404220000421 has 8 divisors (see below), whose sum is σ = 426876649920. Its totient is φ = 381986839872.

The previous prime is 404220000419. The next prime is 404220000497. The reversal of 404220000421 is 124000022404.

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

It is a cyclic number.

It is not a de Polignac number, because 404220000421 - 2¹ = 404220000419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404220000721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105870276 + ... + 105874093.

It is an arithmetic number, because the mean of its divisors is an integer number (53359581240).

Almost surely, 2^404220000421 is an apocalyptic number.

It is an amenable number.

404220000421 is a deficient number, since it is larger than the sum of its proper divisors (22656649499).

404220000421 is a wasteful number, since it uses less digits than its factorization.

404220000421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211744475.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 404220000421 its reverse (124000022404), we get a palindrome (528220022825).

The spelling of 404220000421 in words is "four hundred four billion, two hundred twenty million, four hundred twenty-one", and thus it is an aban number.