28312048 has 20 divisors (see below), whose sum is σ = 56023200. Its totient is φ = 13854464.

The previous prime is 28312043. The next prime is 28312049. The reversal of 28312048 is 84021382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28312043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18073 + ... + 19576.

It is an arithmetic number, because the mean of its divisors is an integer number (2801160).

Almost surely, 2^28312048 is an apocalyptic number.

It is an amenable number.

28312048 is a deficient number, since it is larger than the sum of its proper divisors (27711152).

28312048 is a wasteful number, since it uses less digits than its factorization.

28312048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37704 (or 37698 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 28312048 is about 5320.9066896536. The cubic root of 28312048 is about 304.7827818226.

The spelling of 28312048 in words is "twenty-eight million, three hundred twelve thousand, forty-eight".