1648881832 has 16 divisors (see below), whose sum is σ = 3329473140. Its totient is φ = 761022336.

The previous prime is 1648881823. The next prime is 1648881841. The reversal of 1648881832 is 2381888461.

It is an interprime number because it is at equal distance from previous prime (1648881823) and next prime (1648881841).

It can be written as a sum of positive squares in 2 ways, for example, as 1648847236 + 34596 = 40606^2 + 186^2 .

It is a super-2 number, since 2×1648881832² = 5437622591799352448, which contains 22 as substring.

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, 7927213 + ... + 7927420.

Almost surely, 2^1648881832 is an apocalyptic number.

It is an amenable number.

1648881832 is an abundant number, since it is smaller than the sum of its proper divisors (1680591308).

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

1648881832 is a wasteful number, since it uses less digits than its factorization.

1648881832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15854652 (or 15854648 counting only the distinct ones).

The product of its digits is 589824, while the sum is 49.

The square root of 1648881832 is about 40606.4259939237. The cubic root of 1648881832 is about 1181.3987606870.

The spelling of 1648881832 in words is "one billion, six hundred forty-eight million, eight hundred eighty-one thousand, eight hundred thirty-two".