422987404 has 144 divisors (see below), whose sum is σ = 969397632. Its totient is φ = 160247808.

The previous prime is 422987401. The next prime is 422987419. The reversal of 422987404 is 404789224.

It is not an unprimeable number, because it can be changed into a prime (422987401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5794312 + ... + 5794384.

It is an arithmetic number, because the mean of its divisors is an integer number (6731928).

Almost surely, 2^422987404 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 422987404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (484698816).

422987404 is an abundant number, since it is smaller than the sum of its proper divisors (546410228).

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

422987404 is a wasteful number, since it uses less digits than its factorization.

422987404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 422987404 is about 20566.6575796846. The cubic root of 422987404 is about 750.6586238206.

The spelling of 422987404 in words is "four hundred twenty-two million, nine hundred eighty-seven thousand, four hundred four".