4021433231444 has 12 divisors (see below), whose sum is σ = 7037992500084. Its totient is φ = 2010578231424.

The previous prime is 4021433231353. The next prime is 4021433231449. The reversal of 4021433231444 is 4441323341204.

It can be written as a sum of positive squares in 2 ways, for example, as 2992450216900 + 1028983014544 = 1729870^2 + 1014388^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021433231449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34530677 + ... + 34646940.

It is an arithmetic number, because the mean of its divisors is an integer number (586499375007).

Almost surely, 2^{4021433231444} is an apocalyptic number.

It is an amenable number.

4021433231444 is a deficient number, since it is larger than the sum of its proper divisors (3016559268640).

4021433231444 is a wasteful number, since it uses less digits than its factorization.

4021433231444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69192154 (or 69192152 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 4021433231444 its reverse (4441323341204), we get a palindrome (8462756572648).

The spelling of 4021433231444 in words is "four trillion, twenty-one billion, four hundred thirty-three million, two hundred thirty-one thousand, four hundred forty-four".