3636063440 has 40 divisors (see below), whose sum is σ = 8898790560. Its totient is φ = 1377876096.

The previous prime is 3636063373. The next prime is 3636063449. The reversal of 3636063440 is 443606363.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 3636063440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3636063449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1194554 + ... + 1197593.

It is an arithmetic number, because the mean of its divisors is an integer number (222469764).

Almost surely, 2^3636063440 is an apocalyptic number.

It is an amenable number.

3636063440 is an abundant number, since it is smaller than the sum of its proper divisors (5262727120).

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

3636063440 is a wasteful number, since it uses less digits than its factorization.

3636063440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2392179 (or 2392173 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 35.

The square root of 3636063440 is about 60299.7797674254. The cubic root of 3636063440 is about 1537.7196023602.

The spelling of 3636063440 in words is "three billion, six hundred thirty-six million, sixty-three thousand, four hundred forty".