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444422 = 21120201

444422 has 8 divisors (see below), whose sum is σ = 727272. Its totient is φ = 202000.

The previous prime is 444421. The next prime is 444443. The reversal of 444422 is 224444.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×4444223 = 263334586377118344, which contains 333 as substring.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 444394 and 444403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10079 + ... + 10122.

It is an arithmetic number, because the mean of its divisors is an integer number (90909).

It is a self-describing number.

2444422 is an apocalyptic number.

444422 is a deficient number, since it is larger than the sum of its proper divisors (282850).

444422 is a wasteful number, since it uses less digits than its factorization.

444422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20214.

The product of its digits is 1024, while the sum is 20.

The square root of 444422 is about 666.6498331208. The cubic root of 444422 is about 76.3129981915.

Adding to 444422 its reverse (224444), we get a palindrome (668866).

It can be divided in two parts, 44442 and 2, that added together give a palindrome (44444).

The spelling of 444422 in words is "four hundred forty-four thousand, four hundred twenty-two", and thus it is an iban number.

Divisors: 1 2 11 22 20201 40402 222211 444422