3126820044 has 48 divisors (see below), whose sum is σ = 7713574400. Its totient is φ = 983088576.

The previous prime is 3126820027. The next prime is 3126820057. The reversal of 3126820044 is 4400286213.

It is a junction number, because it is equal to n+sod(n) for n = 3126819993 and 3126820020.

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, 22269 + ... + 82155.

Almost surely, 2^3126820044 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 3126820044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3856787200).

3126820044 is an abundant number, since it is smaller than the sum of its proper divisors (4586754356).

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

3126820044 is a wasteful number, since it uses less digits than its factorization.

3126820044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60142 (or 60140 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 3126820044 is about 55917.9760363338. The cubic root of 3126820044 is about 1462.2926455386.

The spelling of 3126820044 in words is "three billion, one hundred twenty-six million, eight hundred twenty thousand, forty-four".