4481661140 has 24 divisors (see below), whose sum is σ = 10267078752. Its totient is φ = 1629694880.

The previous prime is 4481661139. The next prime is 4481661199. The reversal of 4481661140 is 411661844.

It is a self number, because there is not a number n which added to its sum of digits gives 4481661140.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10185374 + ... + 10185813.

It is an arithmetic number, because the mean of its divisors is an integer number (427794948).

Almost surely, 2^4481661140 is an apocalyptic number.

It is an amenable number.

4481661140 is an abundant number, since it is smaller than the sum of its proper divisors (5785417612).

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

4481661140 is a wasteful number, since it uses less digits than its factorization.

4481661140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20371207 (or 20371205 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 4481661140 is about 66945.2099854799. The cubic root of 4481661140 is about 1648.7178456940.

The spelling of 4481661140 in words is "four billion, four hundred eighty-one million, six hundred sixty-one thousand, one hundred forty".