635344040222 has 16 divisors (see below), whose sum is σ = 953459730672. Its totient is φ = 317524173120.

The previous prime is 635344040207. The next prime is 635344040267. The reversal of 635344040222 is 222040443536.

It is a happy number.

It is a super-2 number, since 2×635344040222² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65881733 + ... + 65891375.

It is an arithmetic number, because the mean of its divisors is an integer number (59591233167).

Almost surely, 2^635344040222 is an apocalyptic number.

635344040222 is a deficient number, since it is larger than the sum of its proper divisors (318115690450).

635344040222 is a wasteful number, since it uses less digits than its factorization.

635344040222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21563.

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 635344040222 its reverse (222040443536), we get a palindrome (857384483758).

The spelling of 635344040222 in words is "six hundred thirty-five billion, three hundred forty-four million, forty thousand, two hundred twenty-two".