5442881644 has 24 divisors (see below), whose sum is σ = 10065000960. Its totient is φ = 2570163024.

The previous prime is 5442881641. The next prime is 5442881657. The reversal of 5442881644 is 4461882445.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a junction number, because it is equal to n+sod(n) for n = 5442881594 and 5442881603.

It is not an unprimeable number, because it can be changed into a prime (5442881641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 367174 + ... + 381709.

It is an arithmetic number, because the mean of its divisors is an integer number (419375040).

Almost surely, 2^5442881644 is an apocalyptic number.

It is an amenable number.

5442881644 is a deficient number, since it is larger than the sum of its proper divisors (4622119316).

5442881644 is a wasteful number, since it uses less digits than its factorization.

5442881644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748989 (or 748987 counting only the distinct ones).

The product of its digits is 983040, while the sum is 46.

The square root of 5442881644 is about 73775.8879580585. The cubic root of 5442881644 is about 1759.0423556605.

The spelling of 5442881644 in words is "five billion, four hundred forty-two million, eight hundred eighty-one thousand, six hundred forty-four".