6631422 has 32 divisors (see below), whose sum is σ = 15531264. Its totient is φ = 1848000.

The previous prime is 6631421. The next prime is 6631447. The reversal of 6631422 is 2241366.

It is a junction number, because it is equal to n+sod(n) for n = 6631392 and 6631401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6631421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204 + ... + 3647.

It is an arithmetic number, because the mean of its divisors is an integer number (485352).

Almost surely, 2^6631422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6631422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7765632).

6631422 is an abundant number, since it is smaller than the sum of its proper divisors (8899842).

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

6631422 is a wasteful number, since it uses less digits than its factorization.

6631422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3904.

The product of its digits is 1728, while the sum is 24.

The square root of 6631422 is about 2575.1547526314. The cubic root of 6631422 is about 187.8749545708.

Adding to 6631422 its reverse (2241366), we get a palindrome (8872788).

The spelling of 6631422 in words is "six million, six hundred thirty-one thousand, four hundred twenty-two".