1648842944 has 84 divisors (see below), whose sum is σ = 3817848600. Its totient is φ = 704471040.

The previous prime is 1648842931. The next prime is 1648842947. The reversal of 1648842944 is 4492488461.

It is a junction number, because it is equal to n+sod(n) for n = 1648842892 and 1648842901.

It is not an unprimeable number, because it can be changed into a prime (1648842947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1407479 + ... + 1408649.

Almost surely, 2^1648842944 is an apocalyptic number.

1648842944 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1648842944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1908924300).

1648842944 is an abundant number, since it is smaller than the sum of its proper divisors (2169005656).

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

1648842944 is a wasteful number, since it uses less digits than its factorization.

1648842944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646 (or 1629 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 50.

The square root of 1648842944 is about 40605.9471506330. The cubic root of 1648842944 is about 1181.3894730605.

The spelling of 1648842944 in words is "one billion, six hundred forty-eight million, eight hundred forty-two thousand, nine hundred forty-four".