422440420421 has 8 divisors (see below), whose sum is σ = 440448337920. Its totient is φ = 404661903408.

The previous prime is 422440420387. The next prime is 422440420427. The reversal of 422440420421 is 124024044224.

It is a happy number.

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 422440420421 - 2³⁰ = 421366678597 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422440420427) 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 7 ways as a sum of consecutive naturals, for example, 57346361 + ... + 57353726.

It is an arithmetic number, because the mean of its divisors is an integer number (55056042240).

Almost surely, 2^422440420421 is an apocalyptic number.

It is an amenable number.

422440420421 is a deficient number, since it is larger than the sum of its proper divisors (18007917499).

422440420421 is a wasteful number, since it uses less digits than its factorization.

422440420421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114700243.

The product of its (nonzero) digits is 16384, while the sum is 29.

Adding to 422440420421 its reverse (124024044224), we get a palindrome (546464464645).

The spelling of 422440420421 in words is "four hundred twenty-two billion, four hundred forty million, four hundred twenty thousand, four hundred twenty-one".