6638322 has 16 divisors (see below), whose sum is σ = 13302432. Its totient is φ = 2208480.

The previous prime is 6638321. The next prime is 6638339. The reversal of 6638322 is 2238366.

It is a self number, because there is not a number n which added to its sum of digits gives 6638322.

It is not an unprimeable number, because it can be changed into a prime (6638321) 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, 4497 + ... + 5787.

It is an arithmetic number, because the mean of its divisors is an integer number (831402).

Almost surely, 2^6638322 is an apocalyptic number.

6638322 is an abundant number, since it is smaller than the sum of its proper divisors (6664110).

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

6638322 is a wasteful number, since it uses less digits than its factorization.

6638322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2153.

The product of its digits is 10368, while the sum is 30.

The square root of 6638322 is about 2576.4941296265. The cubic root of 6638322 is about 187.9400933315.

It can be divided in two parts, 66 and 38322, that multiplied together give a palindrome (2529252).

The spelling of 6638322 in words is "six million, six hundred thirty-eight thousand, three hundred twenty-two".