1028230664 has 16 divisors (see below), whose sum is σ = 1930949820. Its totient is φ = 513310720.

The previous prime is 1028230627. The next prime is 1028230667. The reversal of 1028230664 is 4660328201.

It can be written as a sum of positive squares in 2 ways, for example, as 1021313764 + 6916900 = 31958^2 + 2630^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1028230664.

It is not an unprimeable number, because it can be changed into a prime (1028230667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95129 + ... + 105384.

Almost surely, 2^1028230664 is an apocalyptic number.

It is an amenable number.

1028230664 is a deficient number, since it is larger than the sum of its proper divisors (902719156).

1028230664 is a wasteful number, since it uses less digits than its factorization.

1028230664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201160 (or 201156 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 1028230664 is about 32066.0359882540. The cubic root of 1028230664 is about 1009.3230322863.

Adding to 1028230664 its reverse (4660328201), we get a palindrome (5688558865).

The spelling of 1028230664 in words is "one billion, twenty-eight million, two hundred thirty thousand, six hundred sixty-four".