1004131422 has 72 divisors (see below), whose sum is σ = 2540764512. Its totient is φ = 285768000.

The previous prime is 1004131417. The next prime is 1004131433. The reversal of 1004131422 is 2241314001.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1004131395 and 1004131404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 236922 + ... + 241122.

It is an arithmetic number, because the mean of its divisors is an integer number (35288396).

Almost surely, 2^1004131422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1004131422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1270382256).

1004131422 is an abundant number, since it is smaller than the sum of its proper divisors (1536633090).

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

1004131422 is a wasteful number, since it uses less digits than its factorization.

1004131422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4494 (or 4484 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1004131422 is about 31688.0327884203. The cubic root of 1004131422 is about 1001.3752484912.

Adding to 1004131422 its reverse (2241314001), we get a palindrome (3245445423).

The spelling of 1004131422 in words is "one billion, four million, one hundred thirty-one thousand, four hundred twenty-two".