636542422 has 8 divisors (see below), whose sum is σ = 955519272. Its totient is φ = 318036000.

The previous prime is 636542393. The next prime is 636542443. The reversal of 636542422 is 224245636.

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

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, 114204 + ... + 119647.

It is an arithmetic number, because the mean of its divisors is an integer number (119439909).

Almost surely, 2^636542422 is an apocalyptic number.

636542422 is a deficient number, since it is larger than the sum of its proper divisors (318976850).

636542422 is a wasteful number, since it uses less digits than its factorization.

636542422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235214.

The product of its digits is 69120, while the sum is 34.

The square root of 636542422 is about 25229.7923495220. The cubic root of 636542422 is about 860.2191716496.

The spelling of 636542422 in words is "six hundred thirty-six million, five hundred forty-two thousand, four hundred twenty-two".