4400404040 has 16 divisors (see below), whose sum is σ = 9900909180. Its totient is φ = 1760161600.

The previous prime is 4400404039. The next prime is 4400404051. The reversal of 4400404040 is 404040044.

It can be written as a sum of positive squares in 2 ways, for example, as 3704183044 + 696220996 = 60862^2 + 26386^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

4400404040 is a modest number, since divided by 404040 gives 4400 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55005011 + ... + 55005090.

Almost surely, 2^4400404040 is an apocalyptic number.

4400404040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4400404040 is an abundant number, since it is smaller than the sum of its proper divisors (5500505140).

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

4400404040 is a wasteful number, since it uses less digits than its factorization.

4400404040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110010112 (or 110010108 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 4400404040 is about 66335.5413032863. The cubic root of 4400404040 is about 1638.6926970246.

Adding to 4400404040 its reverse (404040044), we get a palindrome (4804444084).

The spelling of 4400404040 in words is "four billion, four hundred million, four hundred four thousand, forty".