28233576 has 128 divisors (see below), whose sum is σ = 91238400. Its totient is φ = 7922880.

The previous prime is 28233571. The next prime is 28233587. The reversal of 28233576 is 67533282.

28233576 is a `hidden beast` number, since 2 + 82 + 3 + 3 + 576 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 28233576.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28233571) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107221 + ... + 107483.

It is an arithmetic number, because the mean of its divisors is an integer number (712800).

Almost surely, 2^28233576 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 28233576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45619200).

28233576 is an abundant number, since it is smaller than the sum of its proper divisors (63004824).

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

28233576 is a wasteful number, since it uses less digits than its factorization.

28233576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356 (or 346 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 28233576 is about 5313.5276417838. The cubic root of 28233576 is about 304.5009342591.

The spelling of 28233576 in words is "twenty-eight million, two hundred thirty-three thousand, five hundred seventy-six".