28304273306 has 8 divisors (see below), whose sum is σ = 42459016320. Its totient is φ = 14151267868.

The previous prime is 28304273299. The next prime is 28304273353. The reversal of 28304273306 is 60337240382.

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

It is a super-2 number, since 2×28304273306² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28304273306.

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, 392876 + ... + 459303.

It is an arithmetic number, because the mean of its divisors is an integer number (5307377040).

Almost surely, 2^28304273306 is an apocalyptic number.

28304273306 is a deficient number, since it is larger than the sum of its proper divisors (14154743014).

28304273306 is a wasteful number, since it uses less digits than its factorization.

28304273306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868788.

The product of its (nonzero) digits is 145152, while the sum is 38.

The spelling of 28304273306 in words is "twenty-eight billion, three hundred four million, two hundred seventy-three thousand, three hundred six".