641422 has 8 divisors (see below), whose sum is σ = 995400. Its totient is φ = 309624.
The previous prime is 641419. The next prime is 641437. The reversal of 641422 is 224146.
641422 is nontrivially palindromic in base 3.
641422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a super-2 number, since 2×6414222 = 822844364168, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 641422.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5472 + ... + 5587.
It is an arithmetic number, because the mean of its divisors is an integer number (124425).
2641422 is an apocalyptic number.
641422 is a deficient number, since it is larger than the sum of its proper divisors (353978).
641422 is a wasteful number, since it uses less digits than its factorization.
641422 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11090.
The product of its digits is 384, while the sum is 19.
The square root of 641422 is about 800.8882568748. Note that the first 3 decimals coincide. The cubic root of 641422 is about 86.2411655167.
Adding to 641422 its reverse (224146), we get a palindrome (865568).
The spelling of 641422 in words is "six hundred forty-one thousand, four hundred twenty-two".
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