422521325430 has 64 divisors (see below), whose sum is σ = 1059486248448. Its totient is φ = 107636474880.

The previous prime is 422521325419. The next prime is 422521325437. The reversal of 422521325430 is 34523125224.

422521325430 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 422521325391 and 422521325400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422521325437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153990 + ... + 932070.

It is an arithmetic number, because the mean of its divisors is an integer number (16554472632).

Almost surely, 2^422521325430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422521325430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (529743124224).

422521325430 is an abundant number, since it is smaller than the sum of its proper divisors (636964923018).

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

422521325430 is a wasteful number, since it uses less digits than its factorization.

422521325430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778901.

The product of its (nonzero) digits is 57600, while the sum is 33.

The spelling of 422521325430 in words is "four hundred twenty-two billion, five hundred twenty-one million, three hundred twenty-five thousand, four hundred thirty".