1648839872 has 28 divisors (see below), whose sum is σ = 3274695000. Its totient is φ = 823719936.

The previous prime is 1648839869. The next prime is 1648839949. The reversal of 1648839872 is 2789388461.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69623 + ... + 90249.

Almost surely, 2^1648839872 is an apocalyptic number.

It is an amenable number.

1648839872 is a deficient number, since it is larger than the sum of its proper divisors (1625855128).

1648839872 is a wasteful number, since it uses less digits than its factorization.

1648839872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21888 (or 21878 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 56.

The square root of 1648839872 is about 40605.9093236440. The cubic root of 1648839872 is about 1181.3887393680.

The spelling of 1648839872 in words is "one billion, six hundred forty-eight million, eight hundred thirty-nine thousand, eight hundred seventy-two".