28058128 has 40 divisors (see below), whose sum is σ = 62386880. Its totient is φ = 11975040.

The previous prime is 28058113. The next prime is 28058141. The reversal of 28058128 is 82185082.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 28058093 and 28058102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42118 + ... + 42778.

It is an arithmetic number, because the mean of its divisors is an integer number (1559672).

Almost surely, 2^28058128 is an apocalyptic number.

28058128 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28058128 is an abundant number, since it is smaller than the sum of its proper divisors (34328752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28058128 is a wasteful number, since it uses less digits than its factorization.

28058128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055 (or 1049 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 34.

The square root of 28058128 is about 5296.9923541572. The cubic root of 28058128 is about 303.8688839006.

The spelling of 28058128 in words is "twenty-eight million, fifty-eight thousand, one hundred twenty-eight".