4481337636 has 120 divisors (see below), whose sum is σ = 12154416120. Its totient is φ = 1438069248.

The previous prime is 4481337599. The next prime is 4481337661. The reversal of 4481337636 is 6367331844.

4481337636 is a `hidden beast` number, since 4 + 4 + 8 + 1 + 3 + 3 + 7 + 636 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 124545600 + 4356792036 = 11160^2 + 66006^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4481337591 and 4481337600.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5796946 + ... + 5797718.

It is an arithmetic number, because the mean of its divisors is an integer number (101286801).

Almost surely, 2^4481337636 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 4481337636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6077208060).

4481337636 is an abundant number, since it is smaller than the sum of its proper divisors (7673078484).

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

4481337636 is a wasteful number, since it uses less digits than its factorization.

4481337636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435 (or 1424 counting only the distinct ones).

The product of its digits is 870912, while the sum is 45.

The square root of 4481337636 is about 66942.7937570580. The cubic root of 4481337636 is about 1648.6781744177.

The spelling of 4481337636 in words is "four billion, four hundred eighty-one million, three hundred thirty-seven thousand, six hundred thirty-six".