28233072 has 120 divisors (see below), whose sum is σ = 92864096. Its totient is φ = 7838208.

The previous prime is 28233061. The next prime is 28233077. The reversal of 28233072 is 27033282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28233077) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36918 + ... + 37674.

Almost surely, 2^28233072 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 28233072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46432048).

28233072 is an abundant number, since it is smaller than the sum of its proper divisors (64631024).

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

28233072 is a wasteful number, since it uses less digits than its factorization.

28233072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815 (or 806 counting only the distinct ones).

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

The square root of 28233072 is about 5313.4802154520. The cubic root of 28233072 is about 304.4991223575.

The spelling of 28233072 in words is "twenty-eight million, two hundred thirty-three thousand, seventy-two".