641227322 has 4 divisors (see below), whose sum is σ = 961840986. Its totient is φ = 320613660.

The previous prime is 641227313. The next prime is 641227339. The reversal of 641227322 is 223722146.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 641051761 + 175561 = 25319^2 + 419^2 .

It is a super-2 number, since 2×641227322² = 822344956958583368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160306829 + ... + 160306832.

Almost surely, 2^641227322 is an apocalyptic number.

641227322 is a deficient number, since it is larger than the sum of its proper divisors (320613664).

641227322 is a wasteful number, since it uses less digits than its factorization.

641227322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320613663.

The product of its digits is 8064, while the sum is 29.

The square root of 641227322 is about 25322.4667439805. The cubic root of 641227322 is about 862.3243961478.

Adding to 641227322 its reverse (223722146), we get a palindrome (864949468).

The spelling of 641227322 in words is "six hundred forty-one million, two hundred twenty-seven thousand, three hundred twenty-two".