28304020802 has 16 divisors (see below), whose sum is σ = 42553147200. Its totient is φ = 14119669872.

The previous prime is 28304020769. The next prime is 28304020807. The reversal of 28304020802 is 20802040382.

It is a super-2 number, since 2×28304020802² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28304020807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2105699 + ... + 2119097.

It is an arithmetic number, because the mean of its divisors is an integer number (2659571700).

Almost surely, 2^28304020802 is an apocalyptic number.

28304020802 is a deficient number, since it is larger than the sum of its proper divisors (14249126398).

28304020802 is a wasteful number, since it uses less digits than its factorization.

28304020802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15737.

The product of its (nonzero) digits is 6144, while the sum is 29.

The spelling of 28304020802 in words is "twenty-eight billion, three hundred four million, twenty thousand, eight hundred two".