422621443420 has 24 divisors (see below), whose sum is σ = 968187307248. Its totient is φ = 153680524800.

The previous prime is 422621443411. The next prime is 422621443481. The reversal of 422621443420 is 24344126224.

It is a super-2 number, since 2×422621443420² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 960503061 + ... + 960503500.

It is an arithmetic number, because the mean of its divisors is an integer number (40341137802).

Almost surely, 2^422621443420 is an apocalyptic number.

It is an amenable number.

422621443420 is an abundant number, since it is smaller than the sum of its proper divisors (545565863828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422621443420 is a wasteful number, since it uses less digits than its factorization.

422621443420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1921006581 (or 1921006579 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 422621443420 its reverse (24344126224), we get a palindrome (446965569644).

The spelling of 422621443420 in words is "four hundred twenty-two billion, six hundred twenty-one million, four hundred forty-three thousand, four hundred twenty".