4020331442144 has 48 divisors (see below), whose sum is σ = 8381152122336. Its totient is φ = 1891799961600.

The previous prime is 4020331442131. The next prime is 4020331442219. The reversal of 4020331442144 is 4412441330204.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 4020331442144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8602004 + ... + 9057324.

It is an arithmetic number, because the mean of its divisors is an integer number (174607335882).

Almost surely, 2^{4020331442144} is an apocalyptic number.

It is an amenable number.

4020331442144 is an abundant number, since it is smaller than the sum of its proper divisors (4360820680192).

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

4020331442144 is a wasteful number, since it uses less digits than its factorization.

4020331442144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471579 (or 471571 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 4020331442144 its reverse (4412441330204), we get a palindrome (8432772772348).

The spelling of 4020331442144 in words is "four trillion, twenty billion, three hundred thirty-one million, four hundred forty-two thousand, one hundred forty-four".