1028143852 has 12 divisors (see below), whose sum is σ = 1804929840. Its totient is φ = 512449616.

The previous prime is 1028143849. The next prime is 1028143871. The reversal of 1028143852 is 2583418201.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404152 + ... + 406687.

It is an arithmetic number, because the mean of its divisors is an integer number (150410820).

Almost surely, 2^1028143852 is an apocalyptic number.

It is an amenable number.

1028143852 is a deficient number, since it is larger than the sum of its proper divisors (776785988).

1028143852 is a wasteful number, since it uses less digits than its factorization.

1028143852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811160 (or 811158 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 1028143852 is about 32064.6823155945. The cubic root of 1028143852 is about 1009.2946262680.

The spelling of 1028143852 in words is "one billion, twenty-eight million, one hundred forty-three thousand, eight hundred fifty-two".