422983419640 has 96 divisors (see below), whose sum is σ = 1017316584000. Its totient is φ = 158089048320.

The previous prime is 422983419623. The next prime is 422983419721. The reversal of 422983419640 is 46914389224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 925041 + ... + 1304479.

It is an arithmetic number, because the mean of its divisors is an integer number (10597047750).

Almost surely, 2^422983419640 is an apocalyptic number.

422983419640 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 422983419640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (508658292000).

422983419640 is an abundant number, since it is smaller than the sum of its proper divisors (594333164360).

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

422983419640 is a wasteful number, since it uses less digits than its factorization.

422983419640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379541 (or 379506 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 52.

The spelling of 422983419640 in words is "four hundred twenty-two billion, nine hundred eighty-three million, four hundred nineteen thousand, six hundred forty".