1028330646 has 32 divisors (see below), whose sum is σ = 2488734720. Its totient is φ = 276525696.

The previous prime is 1028330617. The next prime is 1028330671. The reversal of 1028330646 is 6460338201.

1028330646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 719406 + ... + 720833.

It is an arithmetic number, because the mean of its divisors is an integer number (77772960).

Almost surely, 2^1028330646 is an apocalyptic number.

1028330646 is an abundant number, since it is smaller than the sum of its proper divisors (1460404074).

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

1028330646 is a wasteful number, since it uses less digits than its factorization.

1028330646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440268.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 1028330646 is about 32067.5949519137. The cubic root of 1028330646 is about 1009.3557457193.

Adding to 1028330646 its reverse (6460338201), we get a palindrome (7488668847).

The spelling of 1028330646 in words is "one billion, twenty-eight million, three hundred thirty thousand, six hundred forty-six".