4401321040 has 20 divisors (see below), whose sum is σ = 10233071604. Its totient is φ = 1760528384.

The previous prime is 4401321031. The next prime is 4401321049. The reversal of 4401321040 is 401231044.

It is an interprime number because it is at equal distance from previous prime (4401321031) and next prime (4401321049).

It can be written as a sum of positive squares in 2 ways, for example, as 3488556096 + 912764944 = 59064^2 + 30212^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 4401320999 and 4401321017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4401321049) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 27508177 + ... + 27508336.

Almost surely, 2^4401321040 is an apocalyptic number.

4401321040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4401321040 is an abundant number, since it is smaller than the sum of its proper divisors (5831750564).

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

4401321040 is a wasteful number, since it uses less digits than its factorization.

4401321040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55016526 (or 55016520 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 4401321040 is about 66342.4527734693. The cubic root of 4401321040 is about 1638.8065181511.

Adding to 4401321040 its reverse (401231044), we get a palindrome (4802552084).

The spelling of 4401321040 in words is "four billion, four hundred one million, three hundred twenty-one thousand, forty".