3809427280 has 20 divisors (see below), whose sum is σ = 8856918612. Its totient is φ = 1523770880.

The previous prime is 3809427263. The next prime is 3809427289. The reversal of 3809427280 is 827249083.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 690428176 + 3118999104 = 26276^2 + 55848^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3809427289) 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 3 ways as a sum of consecutive naturals, for example, 23808841 + ... + 23809000.

Almost surely, 2^3809427280 is an apocalyptic number.

It is an amenable number.

3809427280 is an abundant number, since it is smaller than the sum of its proper divisors (5047491332).

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

3809427280 is a wasteful number, since it uses less digits than its factorization.

3809427280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47617854 (or 47617848 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 3809427280 is about 61720.5580013661. The cubic root of 3809427280 is about 1561.7801396997.

The spelling of 3809427280 in words is "three billion, eight hundred nine million, four hundred twenty-seven thousand, two hundred eighty".