1028345806 has 8 divisors (see below), whose sum is σ = 1575338400. Its totient is φ = 503233008.

The previous prime is 1028345789. The next prime is 1028345821. The reversal of 1028345806 is 6085438201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5469831 + ... + 5470018.

It is an arithmetic number, because the mean of its divisors is an integer number (196917300).

Almost surely, 2^1028345806 is an apocalyptic number.

1028345806 is a deficient number, since it is larger than the sum of its proper divisors (546992594).

1028345806 is a wasteful number, since it uses less digits than its factorization.

1028345806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10939898.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 1028345806 is about 32067.8313267361. The cubic root of 1028345806 is about 1009.3607057834.

The spelling of 1028345806 in words is "one billion, twenty-eight million, three hundred forty-five thousand, eight hundred six".