635222 has 24 divisors (see below), whose sum is σ = 1164144. Its totient is φ = 254592.

The previous prime is 635207. The next prime is 635249. The reversal of 635222 is 222536.

It is a happy number.

635222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 6 + 3 + 2⁵ + 5⁷ + 2¹⁵ + 2¹⁹ .

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 635194 and 635203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3968 + ... + 4124.

It is an arithmetic number, because the mean of its divisors is an integer number (48506).

2⁶³⁵²²² is an apocalyptic number.

635222 is a deficient number, since it is larger than the sum of its proper divisors (528922).

635222 is a wasteful number, since it uses less digits than its factorization.

635222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 183 counting only the distinct ones).

The product of its digits is 720, while the sum is 20.

The square root of 635222 is about 797.0081555417. The cubic root of 635222 is about 85.9623956742.

Adding to 635222 its reverse (222536), we get a palindrome (857758).

Subtracting from 635222 its reverse (222536), we obtain a triangular number (412686 = T₉₀₈).

The spelling of 635222 in words is "six hundred thirty-five thousand, two hundred twenty-two".