28300057403 has 16 divisors (see below), whose sum is σ = 30119164416. Its totient is φ = 26498386560.

The previous prime is 28300057399. The next prime is 28300057411. The reversal of 28300057403 is 30475000382.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 28300057403 - 2² = 28300057399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28300057403.

It is not an unprimeable number, because it can be changed into a prime (28300057493) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3675788 + ... + 3683478.

It is an arithmetic number, because the mean of its divisors is an integer number (1882447776).

Almost surely, 2^28300057403 is an apocalyptic number.

28300057403 is a deficient number, since it is larger than the sum of its proper divisors (1819107013).

28300057403 is a wasteful number, since it uses less digits than its factorization.

28300057403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8794.

The product of its (nonzero) digits is 20160, while the sum is 32.

Adding to 28300057403 its reverse (30475000382), we get a palindrome (58775057785).

The spelling of 28300057403 in words is "twenty-eight billion, three hundred million, fifty-seven thousand, four hundred three".