422284666840 has 64 divisors (see below), whose sum is σ = 1007257822560. Its totient is φ = 158783907840.

The previous prime is 422284666829. The next prime is 422284666841. The reversal of 422284666840 is 48666482224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422284666841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180079 + ... + 936481.

Almost surely, 2^422284666840 is an apocalyptic number.

422284666840 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 422284666840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (503628911280).

422284666840 is an abundant number, since it is smaller than the sum of its proper divisors (584973155720).

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

422284666840 is a wasteful number, since it uses less digits than its factorization.

422284666840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757252 (or 757248 counting only the distinct ones).

The product of its (nonzero) digits is 7077888, while the sum is 52.

The spelling of 422284666840 in words is "four hundred twenty-two billion, two hundred eighty-four million, six hundred sixty-six thousand, eight hundred forty".