28300048 has 30 divisors (see below), whose sum is σ = 63785166. Its totient is φ = 12128256.

The previous prime is 28300043. The next prime is 28300093. The reversal of 28300048 is 84000382.

It can be written as a sum of positive squares in only one way, i.e., 19820304 + 8479744 = 4452^2 + 2912^2 .

It is a junction number, because it is equal to n+sod(n) for n = 28299995 and 28300031.

It is not an unprimeable number, because it can be changed into a prime (28300043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17265 + ... + 18832.

Almost surely, 2^28300048 is an apocalyptic number.

28300048 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28300048 is an abundant number, since it is smaller than the sum of its proper divisors (35485118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28300048 is a wasteful number, since it uses less digits than its factorization.

28300048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36119 (or 36106 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 28300048 is about 5319.7789427757. The cubic root of 28300048 is about 304.7397152309.

The spelling of 28300048 in words is "twenty-eight million, three hundred thousand, forty-eight".