422881368 has 192 divisors, whose sum is σ = 1340640000. Its totient is φ = 110170368.

The previous prime is 422881357. The next prime is 422881387. The reversal of 422881368 is 863188224.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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, 2124933 + ... + 2125131.

It is an arithmetic number, because the mean of its divisors is an integer number (6982500).

Almost surely, 2^422881368 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 422881368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (670320000).

422881368 is an abundant number, since it is smaller than the sum of its proper divisors (917758632).

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

422881368 is a wasteful number, since it uses less digits than its factorization.

422881368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 363 counting only the distinct ones).

The product of its digits is 147456, while the sum is 42.

The square root of 422881368 is about 20564.0795563526. The cubic root of 422881368 is about 750.5958926461.

The spelling of 422881368 in words is "four hundred twenty-two million, eight hundred eighty-one thousand, three hundred sixty-eight".