4440021402340 has 12 divisors (see below), whose sum is σ = 9324044944956. Its totient is φ = 1776008560928.

The previous prime is 4440021402337. The next prime is 4440021402353. The reversal of 4440021402340 is 432041200444.

It can be written as a sum of positive squares in 2 ways, for example, as 2034097783524 + 2405923618816 = 1426218^2 + 1551104^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4440021402299 and 4440021402308.

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 3 ways as a sum of consecutive naturals, for example, 111000535039 + ... + 111000535078.

It is an arithmetic number, because the mean of its divisors is an integer number (777003745413).

Almost surely, 2^{4440021402340} is an apocalyptic number.

It is an amenable number.

4440021402340 is an abundant number, since it is smaller than the sum of its proper divisors (4884023542616).

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

4440021402340 is a wasteful number, since it uses less digits than its factorization.

4440021402340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222001070126 (or 222001070124 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 4440021402340 its reverse (432041200444), we get a palindrome (4872062602784).

The spelling of 4440021402340 in words is "four trillion, four hundred forty billion, twenty-one million, four hundred two thousand, three hundred forty".