4030320440 has 16 divisors (see below), whose sum is σ = 9068221080. Its totient is φ = 1612128160.

The previous prime is 4030320439. The next prime is 4030320449. The reversal of 4030320440 is 440230304.

It is a happy number.

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

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4030320449) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 50378966 + ... + 50379045.

Almost surely, 2^4030320440 is an apocalyptic number.

4030320440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4030320440 is an abundant number, since it is smaller than the sum of its proper divisors (5037900640).

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

4030320440 is a wasteful number, since it uses less digits than its factorization.

4030320440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100758022 (or 100758018 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 4030320440 is about 63484.8047961085. The cubic root of 4030320440 is about 1591.4018516275.

Adding to 4030320440 its reverse (440230304), we get a palindrome (4470550744).

The spelling of 4030320440 in words is "four billion, thirty million, three hundred twenty thousand, four hundred forty".