4491628044 has 48 divisors (see below), whose sum is σ = 11058633600. Its totient is φ = 1414993536.

The previous prime is 4491628039. The next prime is 4491628079. The reversal of 4491628044 is 4408261944.

It is a junction number, because it is equal to n+sod(n) for n = 4491627987 and 4491628005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72024 + ... + 119040.

It is an arithmetic number, because the mean of its divisors is an integer number (230388200).

Almost surely, 2^4491628044 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 4491628044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5529316800).

4491628044 is an abundant number, since it is smaller than the sum of its proper divisors (6567005556).

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

4491628044 is a wasteful number, since it uses less digits than its factorization.

4491628044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47462 (or 47460 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 4491628044 is about 67019.6093990408. The cubic root of 4491628044 is about 1649.9391522097.

Adding to 4491628044 its reverse (4408261944), we get a palindrome (8899889988).

The spelling of 4491628044 in words is "four billion, four hundred ninety-one million, six hundred twenty-eight thousand, forty-four".