636020232 has 64 divisors (see below), whose sum is σ = 1648257600. Its totient is φ = 204353280.

The previous prime is 636020227. The next prime is 636020233. The reversal of 636020232 is 232020636.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (636020233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93507 + ... + 100077.

It is an arithmetic number, because the mean of its divisors is an integer number (25754025).

Almost surely, 2^636020232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 636020232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (824128800).

636020232 is an abundant number, since it is smaller than the sum of its proper divisors (1012237368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

636020232 is a wasteful number, since it uses less digits than its factorization.

636020232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6726 (or 6722 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 636020232 is about 25219.4415481390. The cubic root of 636020232 is about 859.9838792724.

Adding to 636020232 its reverse (232020636), we get a palindrome (868040868).

The spelling of 636020232 in words is "six hundred thirty-six million, twenty thousand, two hundred thirty-two".