3128383120 has 40 divisors (see below), whose sum is σ = 7524306360. Its totient is φ = 1208202240.

The previous prime is 3128383051. The next prime is 3128383123. The reversal of 3128383120 is 213838213.

It can be written as a sum of positive squares in 4 ways, for example, as 813618576 + 2314764544 = 28524^2 + 48112^2 .

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

It is not an unprimeable number, because it can be changed into a prime (3128383123) 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, 671901 + ... + 676540.

It is an arithmetic number, because the mean of its divisors is an integer number (188107659).

Almost surely, 2^3128383120 is an apocalyptic number.

It is an amenable number.

3128383120 is an abundant number, since it is smaller than the sum of its proper divisors (4395923240).

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

3128383120 is a wasteful number, since it uses less digits than its factorization.

3128383120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348483 (or 1348477 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 3128383120 is about 55931.9507973752. The cubic root of 3128383120 is about 1462.5362683192.

The spelling of 3128383120 in words is "three billion, one hundred twenty-eight million, three hundred eighty-three thousand, one hundred twenty".