3809413720 has 128 divisors (see below), whose sum is σ = 10401177600. Its totient is φ = 1225783296.

The previous prime is 3809413711. The next prime is 3809413723. The reversal of 3809413720 is 273149083.

It is a self number, because there is not a number n which added to its sum of digits gives 3809413720.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3809413723) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2088729 + ... + 2090551.

It is an arithmetic number, because the mean of its divisors is an integer number (81259200).

Almost surely, 2^3809413720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3809413720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5200588800).

3809413720 is an abundant number, since it is smaller than the sum of its proper divisors (6591763880).

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

3809413720 is a wasteful number, since it uses less digits than its factorization.

3809413720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2297 (or 2293 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 3809413720 is about 61720.4481513218. The cubic root of 3809413720 is about 1561.7782865984.

The spelling of 3809413720 in words is "three billion, eight hundred nine million, four hundred thirteen thousand, seven hundred twenty".