424422123420 has 192 divisors, whose sum is σ = 1300063564800. Its totient is φ = 103033147392.

The previous prime is 424422123413. The next prime is 424422123421. The reversal of 424422123420 is 24321224424.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424422123421) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4470606 + ... + 4564554.

It is an arithmetic number, because the mean of its divisors is an integer number (6771164400).

Almost surely, 2^424422123420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 424422123420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (650031782400).

424422123420 is an abundant number, since it is smaller than the sum of its proper divisors (875641441380).

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

424422123420 is a wasteful number, since it uses less digits than its factorization.

424422123420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94124 (or 94122 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 424422123420 its reverse (24321224424), we get a palindrome (448743347844).

The spelling of 424422123420 in words is "four hundred twenty-four billion, four hundred twenty-two million, one hundred twenty-three thousand, four hundred twenty".