422405868 has 54 divisors (see below), whose sum is σ = 1050009996. Its totient is φ = 132139776.

The previous prime is 422405807. The next prime is 422405869. The reversal of 422405868 is 868504224.

It is not an unprimeable number, because it can be changed into a prime (422405869) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1210158 + ... + 1210506.

Almost surely, 2^422405868 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 422405868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (525004998).

422405868 is an abundant number, since it is smaller than the sum of its proper divisors (627604128).

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

422405868 is a wasteful number, since it uses less digits than its factorization.

422405868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 39.

The square root of 422405868 is about 20552.5148826123. The cubic root of 422405868 is about 750.3144565821.

The spelling of 422405868 in words is "four hundred twenty-two million, four hundred five thousand, eight hundred sixty-eight".