33133228 has 12 divisors (see below), whose sum is σ = 58032520. Its totient is φ = 16552512.

The previous prime is 33133193. The next prime is 33133231. The reversal of 33133228 is 82233133.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3175 + ... + 8737.

Almost surely, 2^33133228 is an apocalyptic number.

It is an amenable number.

33133228 is a deficient number, since it is larger than the sum of its proper divisors (24899292).

33133228 is a wasteful number, since it uses less digits than its factorization.

33133228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7056 (or 7054 counting only the distinct ones).

The product of its digits is 2592, while the sum is 25.

The square root of 33133228 is about 5756.1469751910. The cubic root of 33133228 is about 321.1845032941.

The spelling of 33133228 in words is "thirty-three million, one hundred thirty-three thousand, two hundred twenty-eight".