2145443044 has 24 divisors (see below), whose sum is σ = 3990083328. Its totient is φ = 1005886080.

The previous prime is 2145443033. The next prime is 2145443077. The reversal of 2145443044 is 4403445412.

It is a junction number, because it is equal to n+sod(n) for n = 2145442997 and 2145443015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39784 + ... + 76639.

It is an arithmetic number, because the mean of its divisors is an integer number (166253472).

Almost surely, 2^2145443044 is an apocalyptic number.

It is an amenable number.

2145443044 is a deficient number, since it is larger than the sum of its proper divisors (1844640284).

2145443044 is a wasteful number, since it uses less digits than its factorization.

2145443044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116715 (or 116713 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

The square root of 2145443044 is about 46318.9274919012. The cubic root of 2145443044 is about 1289.7503761528.

Adding to 2145443044 its reverse (4403445412), we get a palindrome (6548888456).

The spelling of 2145443044 in words is "two billion, one hundred forty-five million, four hundred forty-three thousand, forty-four".