33727228 has 12 divisors (see below), whose sum is σ = 59068240. Its totient is φ = 16850592.

The previous prime is 33727219. The next prime is 33727229. The reversal of 33727228 is 82272733.

It is a happy number.

It is a super-2 number, since 2×33727228² = 2275051817127968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33727193 and 33727202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33727229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4768 + ... + 9496.

Almost surely, 2^33727228 is an apocalyptic number.

It is an amenable number.

33727228 is a deficient number, since it is larger than the sum of its proper divisors (25341012).

33727228 is a wasteful number, since it uses less digits than its factorization.

33727228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6516 (or 6514 counting only the distinct ones).

The product of its digits is 28224, while the sum is 34.

The square root of 33727228 is about 5807.5147868946. The cubic root of 33727228 is about 323.0925045046.

The spelling of 33727228 in words is "thirty-three million, seven hundred twenty-seven thousand, two hundred twenty-eight".