3128724534 has 16 divisors (see below), whose sum is σ = 6738791472. Its totient is φ = 962684448.

The previous prime is 3128724517. The next prime is 3128724541. The reversal of 3128724534 is 4354278213.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 3128724492 and 3128724501.

It is a congruent number.

It is an unprimeable number.

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, 20055849 + ... + 20056004.

It is an arithmetic number, because the mean of its divisors is an integer number (421174467).

Almost surely, 2^3128724534 is an apocalyptic number.

3128724534 is an abundant number, since it is smaller than the sum of its proper divisors (3610066938).

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

3128724534 is a wasteful number, since it uses less digits than its factorization.

3128724534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40111871.

The product of its digits is 161280, while the sum is 39.

The square root of 3128724534 is about 55935.0027621346. The cubic root of 3128724534 is about 1462.5894706897.

The spelling of 3128724534 in words is "three billion, one hundred twenty-eight million, seven hundred twenty-four thousand, five hundred thirty-four".