28304386430 has 64 divisors (see below), whose sum is σ = 52316098560. Its totient is φ = 11022480000.

The previous prime is 28304386403. The next prime is 28304386447. The reversal of 28304386430 is 3468340382.

It is a super-3 number, since 3×28304386430³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 31 ways as a sum of consecutive naturals, for example, 37688555 + ... + 37689305.

It is an arithmetic number, because the mean of its divisors is an integer number (817439040).

Almost surely, 2^28304386430 is an apocalyptic number.

28304386430 is a deficient number, since it is larger than the sum of its proper divisors (24011712130).

28304386430 is a wasteful number, since it uses less digits than its factorization.

28304386430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425.

The product of its (nonzero) digits is 331776, while the sum is 41.

The spelling of 28304386430 in words is "twenty-eight billion, three hundred four million, three hundred eighty-six thousand, four hundred thirty".