32533228 has 48 divisors (see below), whose sum is σ = 70685440. Its totient is φ = 12757824.

The previous prime is 32533219. The next prime is 32533283. The reversal of 32533228 is 82233523.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 32533196 and 32533205.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50275 + ... + 50917.

Almost surely, 2^32533228 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 32533228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35342720).

32533228 is an abundant number, since it is smaller than the sum of its proper divisors (38152212).

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

32533228 is a wasteful number, since it uses less digits than its factorization.

32533228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806 (or 804 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

The square root of 32533228 is about 5703.7906693707. The cubic root of 32533228 is about 319.2339357726.

It can be divided in two parts, 32533 and 228, that added together give a square (32761 = 181²).

The spelling of 32533228 in words is "thirty-two million, five hundred thirty-three thousand, two hundred twenty-eight".