7644422 has 16 divisors (see below), whose sum is σ = 12398640. Its totient is φ = 3522528.

The previous prime is 7644421. The next prime is 7644431. The reversal of 7644422 is 2244467.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7644421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1313 + ... + 4124.

It is an arithmetic number, because the mean of its divisors is an integer number (774915).

Almost surely, 2^7644422 is an apocalyptic number.

7644422 is a deficient number, since it is larger than the sum of its proper divisors (4754218).

7644422 is a wasteful number, since it uses less digits than its factorization.

7644422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5495.

The product of its digits is 10752, while the sum is 29.

The square root of 7644422 is about 2764.8547882303. The cubic root of 7644422 is about 196.9918314529.

Adding to 7644422 its reverse (2244467), we get a palindrome (9888889).

The spelling of 7644422 in words is "seven million, six hundred forty-four thousand, four hundred twenty-two".