28332748 has 6 divisors (see below), whose sum is σ = 49582316. Its totient is φ = 14166372.

The previous prime is 28332709. The next prime is 28332751. The reversal of 28332748 is 84723382.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3541590 + ... + 3541597.

Almost surely, 2^28332748 is an apocalyptic number.

It is an amenable number.

28332748 is a deficient number, since it is larger than the sum of its proper divisors (21249568).

28332748 is a wasteful number, since it uses less digits than its factorization.

28332748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7083191 (or 7083189 counting only the distinct ones).

The product of its digits is 64512, while the sum is 37.

The square root of 28332748 is about 5322.8514914470. The cubic root of 28332748 is about 304.8570431008.

The spelling of 28332748 in words is "twenty-eight million, three hundred thirty-two thousand, seven hundred forty-eight".