28058532 has 24 divisors (see below), whose sum is σ = 66993696. Its totient is φ = 9135168.

The previous prime is 28058521. The next prime is 28058549. The reversal of 28058532 is 23585082.

It is a junction number, because it is equal to n+sod(n) for n = 28058493 and 28058502.

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 in 7 ways as a sum of consecutive naturals, for example, 26673 + ... + 27704.

It is an arithmetic number, because the mean of its divisors is an integer number (2791404).

Almost surely, 2^28058532 is an apocalyptic number.

It is an amenable number.

28058532 is an abundant number, since it is smaller than the sum of its proper divisors (38935164).

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

28058532 is a wasteful number, since it uses less digits than its factorization.

28058532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54427 (or 54425 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 28058532 is about 5297.0304888683. The cubic root of 28058532 is about 303.8703423305.

The spelling of 28058532 in words is "twenty-eight million, fifty-eight thousand, five hundred thirty-two".