4004024020444 has 36 divisors (see below), whose sum is σ = 8506819216336. Its totient is φ = 1615068509184.

The previous prime is 4004024020439. The next prime is 4004024020481. The reversal of 4004024020444 is 4440204204004.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 247398237 + ... + 247414420.

Almost surely, 2^{4004024020444} is an apocalyptic number.

It is an amenable number.

4004024020444 is an abundant number, since it is smaller than the sum of its proper divisors (4502795195892).

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

4004024020444 is a wasteful number, since it uses less digits than its factorization.

4004024020444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494812702 (or 494812683 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 4004024020444 its reverse (4440204204004), we get a palindrome (8444228224448).

The spelling of 4004024020444 in words is "four trillion, four billion, twenty-four million, twenty thousand, four hundred forty-four".