4020044323240 has 64 divisors (see below), whose sum is σ = 9954703604160. Its totient is φ = 1448897694720.

The previous prime is 4020044323219. The next prime is 4020044323259. The reversal of 4020044323240 is 423234400204.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4020044323199 and 4020044323208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40377114 + ... + 40476553.

It is an arithmetic number, because the mean of its divisors is an integer number (155542243815).

Almost surely, 2^{4020044323240} is an apocalyptic number.

4020044323240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4020044323240 is an abundant number, since it is smaller than the sum of its proper divisors (5934659280920).

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

4020044323240 is a wasteful number, since it uses less digits than its factorization.

4020044323240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80853802 (or 80853798 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 4020044323240 its reverse (423234400204), we get a palindrome (4443278723444).

The spelling of 4020044323240 in words is "four trillion, twenty billion, forty-four million, three hundred twenty-three thousand, two hundred forty".