422534011020 has 144 divisors (see below), whose sum is σ = 1300845782880. Its totient is φ = 102399503360.

The previous prime is 422534010949. The next prime is 422534011033. The reversal of 422534011020 is 20110435224.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28517134 + ... + 28531946.

It is an arithmetic number, because the mean of its divisors is an integer number (9033651270).

Almost surely, 2^422534011020 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 422534011020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (650422891440).

422534011020 is an abundant number, since it is smaller than the sum of its proper divisors (878311771860).

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

422534011020 is a wasteful number, since it uses less digits than its factorization.

422534011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18776 (or 18763 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 422534011020 its reverse (20110435224), we get a palindrome (442644446244).

The spelling of 422534011020 in words is "four hundred twenty-two billion, five hundred thirty-four million, eleven thousand, twenty".