4400803640 has 64 divisors (see below), whose sum is σ = 10134149760. Its totient is φ = 1719178240.

The previous prime is 4400803639. The next prime is 4400803661. The reversal of 4400803640 is 463080044.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 977234 + ... + 981726.

It is an arithmetic number, because the mean of its divisors is an integer number (158346090).

Almost surely, 2^4400803640 is an apocalyptic number.

4400803640 is a gapful number since it is divisible by the number (40) 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 4400803640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5067074880).

4400803640 is an abundant number, since it is smaller than the sum of its proper divisors (5733346120).

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

4400803640 is a wasteful number, since it uses less digits than its factorization.

4400803640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5072 (or 5068 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 4400803640 is about 66338.5531949559. The cubic root of 4400803640 is about 1638.7422986654.

Adding to 4400803640 its reverse (463080044), we get a palindrome (4863883684).

The spelling of 4400803640 in words is "four billion, four hundred million, eight hundred three thousand, six hundred forty".