3128741456 has 40 divisors (see below), whose sum is σ = 6154517544. Its totient is φ = 1540546560.

The previous prime is 3128741453. The next prime is 3128741459. The reversal of 3128741456 is 6541478213.

It is an interprime number because it is at equal distance from previous prime (3128741453) and next prime (3128741459).

It can be written as a sum of positive squares in 4 ways, for example, as 854977600 + 2273763856 = 29240^2 + 47684^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3128741453) 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, 929216 + ... + 932576.

Almost surely, 2^3128741456 is an apocalyptic number.

It is an amenable number.

3128741456 is a deficient number, since it is larger than the sum of its proper divisors (3025776088).

3128741456 is a wasteful number, since it uses less digits than its factorization.

3128741456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4239 (or 4233 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The square root of 3128741456 is about 55935.1540267836. The cubic root of 3128741456 is about 1462.5921075357.

The spelling of 3128741456 in words is "three billion, one hundred twenty-eight million, seven hundred forty-one thousand, four hundred fifty-six".