422996860 has 144 divisors (see below), whose sum is σ = 1086124032. Its totient is φ = 137030400.

The previous prime is 422996843. The next prime is 422996863. The reversal of 422996860 is 68699224.

It is a self number, because there is not a number n which added to its sum of digits gives 422996860.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422996863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1152397 + ... + 1152763.

It is an arithmetic number, because the mean of its divisors is an integer number (7542528).

Almost surely, 2^422996860 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 422996860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (543062016).

422996860 is an abundant number, since it is smaller than the sum of its proper divisors (663127172).

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

422996860 is a wasteful number, since it uses less digits than its factorization.

422996860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444 (or 429 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 422996860 is about 20566.8874650493. The cubic root of 422996860 is about 750.6642175057.

The spelling of 422996860 in words is "four hundred twenty-two million, nine hundred ninety-six thousand, eight hundred sixty".