3128475284 has 48 divisors (see below), whose sum is σ = 6018268032. Its totient is φ = 1411200000.

The previous prime is 3128475283. The next prime is 3128475347. The reversal of 3128475284 is 4825748213.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3128475283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4957649 + ... + 4958279.

It is an arithmetic number, because the mean of its divisors is an integer number (125380584).

Almost surely, 2^3128475284 is an apocalyptic number.

It is an amenable number.

3128475284 is a deficient number, since it is larger than the sum of its proper divisors (2889792748).

3128475284 is a wasteful number, since it uses less digits than its factorization.

3128475284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328 (or 1326 counting only the distinct ones).

The product of its digits is 430080, while the sum is 44.

The square root of 3128475284 is about 55932.7746853310. The cubic root of 3128475284 is about 1462.5506305700.

The spelling of 3128475284 in words is "three billion, one hundred twenty-eight million, four hundred seventy-five thousand, two hundred eighty-four".