28033272 has 96 divisors (see below), whose sum is σ = 82695600. Its totient is φ = 8543232.

The previous prime is 28033211. The next prime is 28033277. The reversal of 28033272 is 27233082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28033277) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 44979 + ... + 45597.

Almost surely, 2^28033272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28033272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41347800).

28033272 is an abundant number, since it is smaller than the sum of its proper divisors (54662328).

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

28033272 is a wasteful number, since it uses less digits than its factorization.

28033272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685 (or 678 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 28033272 is about 5294.6455972048. The cubic root of 28033272 is about 303.7791274207.

The spelling of 28033272 in words is "twenty-eight million, thirty-three thousand, two hundred seventy-two".