4021444431132 has 48 divisors (see below), whose sum is σ = 9395762568192. Its totient is φ = 1338711736320.

The previous prime is 4021444431131. The next prime is 4021444431143. The reversal of 4021444431132 is 2311344441204.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4021444431093 and 4021444431102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021444431131) 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 15 ways as a sum of consecutive naturals, for example, 61328668 + ... + 61394204.

It is an arithmetic number, because the mean of its divisors is an integer number (195745053504).

Almost surely, 2^{4021444431132} is an apocalyptic number.

It is an amenable number.

4021444431132 is an abundant number, since it is smaller than the sum of its proper divisors (5374318137060).

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

4021444431132 is a wasteful number, since it uses less digits than its factorization.

4021444431132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72218 (or 72216 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 4021444431132 its reverse (2311344441204), we get a palindrome (6332788872336).

The spelling of 4021444431132 in words is "four trillion, twenty-one billion, four hundred forty-four million, four hundred thirty-one thousand, one hundred thirty-two".