3128439408 has 20 divisors (see below), whose sum is σ = 8081801928. Its totient is φ = 1042813120.

The previous prime is 3128439407. The next prime is 3128439437. The reversal of 3128439408 is 8049348213.

It is a self number, because there is not a number n which added to its sum of digits gives 3128439408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3128439407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32587863 + ... + 32587958.

Almost surely, 2^3128439408 is an apocalyptic number.

It is an amenable number.

3128439408 is an abundant number, since it is smaller than the sum of its proper divisors (4953362520).

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

3128439408 is a wasteful number, since it uses less digits than its factorization.

3128439408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65175832 (or 65175826 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 3128439408 is about 55932.4539779903. The cubic root of 3128439408 is about 1462.5450399161.

The spelling of 3128439408 in words is "three billion, one hundred twenty-eight million, four hundred thirty-nine thousand, four hundred eight".