3128810904 has 96 divisors (see below), whose sum is σ = 8912592000. Its totient is φ = 990213120.

The previous prime is 3128810897. The next prime is 3128810929. The reversal of 3128810904 is 4090188213.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105072 + ... + 131520.

It is an arithmetic number, because the mean of its divisors is an integer number (92839500).

Almost surely, 2^3128810904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3128810904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4456296000).

3128810904 is an abundant number, since it is smaller than the sum of its proper divisors (5783781096).

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

3128810904 is a wasteful number, since it uses less digits than its factorization.

3128810904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26545 (or 26538 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 3128810904 is about 55935.7748136200. The cubic root of 3128810904 is about 1462.6029290696.

The spelling of 3128810904 in words is "three billion, one hundred twenty-eight million, eight hundred ten thousand, nine hundred four".