3128542438 has 16 divisors (see below), whose sum is σ = 5438755584. Its totient is φ = 1321918920.

The previous prime is 3128542411. The next prime is 3128542463. The reversal of 3128542438 is 8342458213.

It is a self number, because there is not a number n which added to its sum of digits gives 3128542438.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1572720 + ... + 1574707.

It is an arithmetic number, because the mean of its divisors is an integer number (339922224).

Almost surely, 2^3128542438 is an apocalyptic number.

3128542438 is a deficient number, since it is larger than the sum of its proper divisors (2310213146).

3128542438 is a wasteful number, since it uses less digits than its factorization.

3128542438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3147507.

The product of its digits is 184320, while the sum is 40.

The square root of 3128542438 is about 55933.3749920385. The cubic root of 3128542438 is about 1462.5610952440.

The spelling of 3128542438 in words is "three billion, one hundred twenty-eight million, five hundred forty-two thousand, four hundred thirty-eight".