3720513520 has 40 divisors (see below), whose sum is σ = 8653825584. Its totient is φ = 1487580672.

The previous prime is 3720513499. The next prime is 3720513523. The reversal of 3720513520 is 253150273.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3720513523) 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, 213787 + ... + 230533.

Almost surely, 2^3720513520 is an apocalyptic number.

It is an amenable number.

3720513520 is an abundant number, since it is smaller than the sum of its proper divisors (4933312064).

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

3720513520 is a wasteful number, since it uses less digits than its factorization.

3720513520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19537 (or 19531 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 3720513520 is about 60996.0123286760. The cubic root of 3720513520 is about 1549.5334731934.

Adding to 3720513520 its reverse (253150273), we get a palindrome (3973663793).

The spelling of 3720513520 in words is "three billion, seven hundred twenty million, five hundred thirteen thousand, five hundred twenty".