28034128 has 20 divisors (see below), whose sum is σ = 54846688. Its totient is φ = 13880160.

The previous prime is 28034113. The next prime is 28034129. The reversal of 28034128 is 82143082.

It is a junction number, because it is equal to n+sod(n) for n = 28034096 and 28034105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28034129) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 6858 + ... + 10153.

Almost surely, 2^28034128 is an apocalyptic number.

It is an amenable number.

28034128 is a deficient number, since it is larger than the sum of its proper divisors (26812560).

28034128 is a wasteful number, since it uses less digits than its factorization.

28034128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17122 (or 17116 counting only the distinct ones).

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

The square root of 28034128 is about 5294.7264329708. The cubic root of 28034128 is about 303.7822193690.

The spelling of 28034128 in words is "twenty-eight million, thirty-four thousand, one hundred twenty-eight".