28065032 has 12 divisors (see below), whose sum is σ = 52650045. Its totient is φ = 14025024.

The previous prime is 28065029. The next prime is 28065041. The reversal of 28065032 is 23056082.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 18541636 + 9523396 = 4306^2 + 3086^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=3746.

It is a super-2 number, since 2×28065032² = 1575292042322048, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28064992 and 28065010.

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 2 ways as a sum of consecutive naturals, for example, 14048 + ... + 15920.

Almost surely, 2^28065032 is an apocalyptic number.

It is an amenable number.

28065032 is a deficient number, since it is larger than the sum of its proper divisors (24585013).

28065032 is an frugal number, since it uses more digits than its factorization.

28065032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3752 (or 1875 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 28065032 is about 5297.6440046496. The cubic root of 28065032 is about 303.8938052440.

The spelling of 28065032 in words is "twenty-eight million, sixty-five thousand, thirty-two".