636369344 has 56 divisors (see below), whose sum is σ = 1367850960. Its totient is φ = 291999744.

The previous prime is 636369319. The next prime is 636369361. The reversal of 636369344 is 443963636.

636369344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 636369295 and 636369304.

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, 146792 + ... + 151064.

It is an arithmetic number, because the mean of its divisors is an integer number (24425910).

Almost surely, 2^636369344 is an apocalyptic number.

636369344 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 636369344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (683925480).

636369344 is an abundant number, since it is smaller than the sum of its proper divisors (731481616).

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

636369344 is a wasteful number, since it uses less digits than its factorization.

636369344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4477 (or 4467 counting only the distinct ones).

The product of its digits is 839808, while the sum is 44.

The square root of 636369344 is about 25226.3620841373. The cubic root of 636369344 is about 860.1411990983.

The spelling of 636369344 in words is "six hundred thirty-six million, three hundred sixty-nine thousand, three hundred forty-four".