636364332 has 144 divisors (see below), whose sum is σ = 1770219360. Its totient is φ = 191932416.

The previous prime is 636364319. The next prime is 636364367. The reversal of 636364332 is 233463636.

636364332 is a `hidden beast` number, since 6 + 3 + 6 + 3 + 643 + 3 + 2 = 666.

636364332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3555019 + ... + 3555197.

It is an arithmetic number, because the mean of its divisors is an integer number (12293190).

Almost surely, 2^636364332 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 636364332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (885109680).

636364332 is an abundant number, since it is smaller than the sum of its proper divisors (1133855028).

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

636364332 is a wasteful number, since it uses less digits than its factorization.

636364332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400 (or 395 counting only the distinct ones).

The product of its digits is 139968, while the sum is 36.

The square root of 636364332 is about 25226.2627434188. The cubic root of 636364332 is about 860.1389409552.

The spelling of 636364332 in words is "six hundred thirty-six million, three hundred sixty-four thousand, three hundred thirty-two".