3721000000 has 147 divisors (see below), whose sum is σ = 9383493171. Its totient is φ = 1464000000.

The previous prime is 3720999949. The next prime is 3721000037. The reversal of 3721000000 is 1273.

The square root of 3721000000 is 61000.

It is a perfect power (a square), and thus also a powerful number.

3721000000 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 10 ways, for example, as 986965056 + 2734034944 = 31416^2 + 52288^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 60999970 + ... + 61000030.

Almost surely, 2^3721000000 is an apocalyptic number.

3721000000 is the 61000-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3721000000

3721000000 is an abundant number, since it is smaller than the sum of its proper divisors (5662493171).

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

3721000000 is an frugal number, since it uses more digits than its factorization.

3721000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 68 counting only the distinct ones).

The product of its (nonzero) digits is 42, while the sum is 13.

The cubic root of 3721000000 is about 1549.6010072571.

Adding to 3721000000 its reverse (1273), we get a palindrome (3721001273).

The spelling of 3721000000 in words is "three billion, seven hundred twenty-one million", and thus it is an aban number.