3681452448 has 72 divisors (see below), whose sum is σ = 10475363808. Its totient is φ = 1226420352.

The previous prime is 3681452413. The next prime is 3681452449. The reversal of 3681452448 is 8442541863.

3681452448 is a `hidden beast` number, since 3 + 6 + 81 + 4 + 524 + 48 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (3681452449) 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, 718311 + ... + 723417.

It is an arithmetic number, because the mean of its divisors is an integer number (145491164).

Almost surely, 2^3681452448 is an apocalyptic number.

It is an amenable number.

3681452448 is an abundant number, since it is smaller than the sum of its proper divisors (6793911360).

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

3681452448 is a wasteful number, since it uses less digits than its factorization.

3681452448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7626 (or 7615 counting only the distinct ones).

The product of its digits is 737280, while the sum is 45.

The square root of 3681452448 is about 60674.9738195246. The cubic root of 3681452448 is about 1544.0916167101.

The spelling of 3681452448 in words is "three billion, six hundred eighty-one million, four hundred fifty-two thousand, four hundred forty-eight".