28533038 has 8 divisors (see below), whose sum is σ = 45317232. Its totient is φ = 13427296.

The previous prime is 28533017. The next prime is 28533047. The reversal of 28533038 is 83033582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28532995 and 28533013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419570 + ... + 419637.

It is an arithmetic number, because the mean of its divisors is an integer number (5664654).

Almost surely, 2^28533038 is an apocalyptic number.

28533038 is a deficient number, since it is larger than the sum of its proper divisors (16784194).

28533038 is a wasteful number, since it uses less digits than its factorization.

28533038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839226.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 28533038 is about 5341.6325219918. The cubic root of 28533038 is about 305.5737225905.

The spelling of 28533038 in words is "twenty-eight million, five hundred thirty-three thousand, thirty-eight".