422203004520 has 128 divisors (see below), whose sum is σ = 1382117437440. Its totient is φ = 102325418240.

The previous prime is 422203004519. The next prime is 422203004539. The reversal of 422203004520 is 25400302224.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5249329 + ... + 5329151.

It is an arithmetic number, because the mean of its divisors is an integer number (10797792480).

Almost surely, 2^422203004520 is an apocalyptic number.

422203004520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422203004520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (691058718720).

422203004520 is an abundant number, since it is smaller than the sum of its proper divisors (959914432920).

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

422203004520 is a wasteful number, since it uses less digits than its factorization.

422203004520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83855 (or 83851 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

Adding to 422203004520 its reverse (25400302224), we get a palindrome (447603306744).

The spelling of 422203004520 in words is "four hundred twenty-two billion, two hundred three million, four thousand, five hundred twenty".