33996228 has 96 divisors (see below), whose sum is σ = 94617600. Its totient is φ = 9300096.

The previous prime is 33996227. The next prime is 33996233. The reversal of 33996228 is 82269933.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 33996228.

It is not an unprimeable number, because it can be changed into a prime (33996227) 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, 311838 + ... + 311946.

It is an arithmetic number, because the mean of its divisors is an integer number (985600).

Almost surely, 2^33996228 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 33996228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47308800).

33996228 is an abundant number, since it is smaller than the sum of its proper divisors (60621372).

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

33996228 is a wasteful number, since it uses less digits than its factorization.

33996228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249 (or 247 counting only the distinct ones).

The product of its digits is 139968, while the sum is 42.

The square root of 33996228 is about 5830.6284395423. The cubic root of 33996228 is about 323.9491994732.

The spelling of 33996228 in words is "thirty-three million, nine hundred ninety-six thousand, two hundred twenty-eight".