3720020538 has 16 divisors (see below), whose sum is σ = 8012352096. Its totient is φ = 1144621680.

The previous prime is 3720020503. The next prime is 3720020539. The reversal of 3720020538 is 8350200273.

It is not an unprimeable number, because it can be changed into a prime (3720020539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23846208 + ... + 23846363.

It is an arithmetic number, because the mean of its divisors is an integer number (500772006).

Almost surely, 2^3720020538 is an apocalyptic number.

3720020538 is an abundant number, since it is smaller than the sum of its proper divisors (4292331558).

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

3720020538 is a wasteful number, since it uses less digits than its factorization.

3720020538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47692589.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 3720020538 is about 60991.9710945629. The cubic root of 3720020538 is about 1549.4650305041.

The spelling of 3720020538 in words is "three billion, seven hundred twenty million, twenty thousand, five hundred thirty-eight".