641049222 has 32 divisors (see below), whose sum is σ = 1412515584. Its totient is φ = 192332000.

The previous prime is 641049221. The next prime is 641049271. The reversal of 641049222 is 222940146.

It is a self number, because there is not a number n which added to its sum of digits gives 641049222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641049221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41418 + ... + 54749.

It is an arithmetic number, because the mean of its divisors is an integer number (44141112).

Almost surely, 2^641049222 is an apocalyptic number.

641049222 is an abundant number, since it is smaller than the sum of its proper divisors (771466362).

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

641049222 is a wasteful number, since it uses less digits than its factorization.

641049222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96284.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 641049222 is about 25318.9498597394. The cubic root of 641049222 is about 862.2445522865.

Adding to 641049222 its reverse (222940146), we get a palindrome (863989368).

The spelling of 641049222 in words is "six hundred forty-one million, forty-nine thousand, two hundred twenty-two".