3681448 has 8 divisors (see below), whose sum is σ = 6902730. Its totient is φ = 1840720.

The previous prime is 3681443. The next prime is 3681451. The reversal of 3681448 is 8441863.

3681448 is digitally balanced in base 5, 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 only one way, i.e., 2553604 + 1127844 = 1598^2 + 1062^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (3681443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230083 + ... + 230098.

Almost surely, 2^3681448 is an apocalyptic number.

It is an amenable number.

3681448 is a deficient number, since it is larger than the sum of its proper divisors (3221282).

3681448 is a wasteful number, since it uses less digits than its factorization.

3681448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460187 (or 460183 counting only the distinct ones).

The product of its digits is 18432, while the sum is 34.

The square root of 3681448 is about 1918.7099832961. The cubic root of 3681448 is about 154.4090994843.

The spelling of 3681448 in words is "three million, six hundred eighty-one thousand, four hundred forty-eight".