3681657732 has 24 divisors (see below), whose sum is σ = 8628054400. Its totient is φ = 1221859296.

The previous prime is 3681657719. The next prime is 3681657781. The reversal of 3681657732 is 2377561863.

3681657732 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 667132 + ... + 672627.

Almost surely, 2^3681657732 is an apocalyptic number.

It is an amenable number.

3681657732 is an abundant number, since it is smaller than the sum of its proper divisors (4946396668).

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

3681657732 is a wasteful number, since it uses less digits than its factorization.

3681657732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339995 (or 1339993 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 48.

The square root of 3681657732 is about 60676.6654653995. The cubic root of 3681657732 is about 1544.1203165612.

The spelling of 3681657732 in words is "three billion, six hundred eighty-one million, six hundred fifty-seven thousand, seven hundred thirty-two".