28048732 has 12 divisors (see below), whose sum is σ = 49343616. Its totient is φ = 13950560.

The previous prime is 28048729. The next prime is 28048739. The reversal of 28048732 is 23784082.

28048732 is nontrivially palindromic in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28048739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17593 + ... + 19120.

It is an arithmetic number, because the mean of its divisors is an integer number (4111968).

Almost surely, 2^28048732 is an apocalyptic number.

It is an amenable number.

28048732 is a deficient number, since it is larger than the sum of its proper divisors (21294884).

28048732 is a wasteful number, since it uses less digits than its factorization.

28048732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36908 (or 36906 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 28048732 is about 5296.1053614897. The cubic root of 28048732 is about 303.8349606253.

The spelling of 28048732 in words is "twenty-eight million, forty-eight thousand, seven hundred thirty-two".