3181489448 has 16 divisors (see below), whose sum is σ = 6003290580. Its totient is φ = 1580611968.

The previous prime is 3181489433. The next prime is 3181489471. The reversal of 3181489448 is 8449841813.

3181489448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2834710564 + 346778884 = 53242^2 + 18622^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3181489396 and 3181489405.

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, 1265261 + ... + 1267772.

Almost surely, 2^3181489448 is an apocalyptic number.

It is an amenable number.

3181489448 is a deficient number, since it is larger than the sum of its proper divisors (2821801132).

3181489448 is a wasteful number, since it uses less digits than its factorization.

3181489448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2533196 (or 2533192 counting only the distinct ones).

The product of its digits is 884736, while the sum is 50.

The square root of 3181489448 is about 56404.6934926518. The cubic root of 3181489448 is about 1470.7657090290.

The spelling of 3181489448 in words is "three billion, one hundred eighty-one million, four hundred eighty-nine thousand, four hundred forty-eight".