28314128 has 10 divisors (see below), whose sum is σ = 54858654. Its totient is φ = 14157056.

The previous prime is 28314119. The next prime is 28314151. The reversal of 28314128 is 82141382.

It can be written as a sum of positive squares in only one way, i.e., 27164944 + 1149184 = 5212^2 + 1072^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28314128.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 884801 + ... + 884832.

Almost surely, 2^28314128 is an apocalyptic number.

It is an amenable number.

28314128 is a deficient number, since it is larger than the sum of its proper divisors (26544526).

28314128 is a wasteful number, since it uses less digits than its factorization.

28314128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1769641 (or 1769635 counting only the distinct ones).

The product of its digits is 3072, while the sum is 29.

The square root of 28314128 is about 5321.1021414741. The cubic root of 28314128 is about 304.7902454609.

The spelling of 28314128 in words is "twenty-eight million, three hundred fourteen thousand, one hundred twenty-eight".