4443400040 has 32 divisors (see below), whose sum is σ = 10523844000. Its totient is φ = 1683814464.

The previous prime is 4443400037. The next prime is 4443400043. The reversal of 4443400040 is 400043444.

It is an interprime number because it is at equal distance from previous prime (4443400037) and next prime (4443400043).

It is a junction number, because it is equal to n+sod(n) for n = 4443399979 and 4443400015.

It is not an unprimeable number, because it can be changed into a prime (4443400043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2922530 + ... + 2924049.

It is an arithmetic number, because the mean of its divisors is an integer number (328870125).

Almost surely, 2^4443400040 is an apocalyptic number.

4443400040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4443400040 is an abundant number, since it is smaller than the sum of its proper divisors (6080443960).

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

4443400040 is a wasteful number, since it uses less digits than its factorization.

4443400040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5846609 (or 5846605 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 4443400040 is about 66658.8331731062. The cubic root of 4443400040 is about 1644.0125866552.

Adding to 4443400040 its reverse (400043444), we get a palindrome (4843443484).

The spelling of 4443400040 in words is "four billion, four hundred forty-three million, four hundred thousand, forty".