1028489104 has 10 divisors (see below), whose sum is σ = 1992697670. Its totient is φ = 514244544.

The previous prime is 1028489051. The next prime is 1028489117. The reversal of 1028489104 is 4019848201.

It can be written as a sum of positive squares in only one way, i.e., 652904704 + 375584400 = 25552^2 + 19380^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32140269 + ... + 32140300.

It is an arithmetic number, because the mean of its divisors is an integer number (199269767).

Almost surely, 2^1028489104 is an apocalyptic number.

It is an amenable number.

1028489104 is a deficient number, since it is larger than the sum of its proper divisors (964208566).

1028489104 is an equidigital number, since it uses as much as digits as its factorization.

1028489104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64280577 (or 64280571 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 1028489104 is about 32070.0655440553. The cubic root of 1028489104 is about 1009.4075877602.

The spelling of 1028489104 in words is "one billion, twenty-eight million, four hundred eighty-nine thousand, one hundred four".