4000239980544 has 208 divisors, whose sum is σ = 10945679169600. Its totient is φ = 1298813288448.

The previous prime is 4000239980543. The next prime is 4000239980549. The reversal of 4000239980544 is 4450899320004.

It is a super-2 number, since 2×4000239980544² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 4000239980493 and 4000239980502.

It is not an unprimeable number, because it can be changed into a prime (4000239980543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90503602 + ... + 90547790.

Almost surely, 2^{4000239980544} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4000239980544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5472839584800).

4000239980544 is an abundant number, since it is smaller than the sum of its proper divisors (6945439189056).

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

4000239980544 is a wasteful number, since it uses less digits than its factorization.

4000239980544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44408 (or 44386 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 4000239980544 in words is "four trillion, two hundred thirty-nine million, nine hundred eighty thousand, five hundred forty-four".