33372228 has 12 divisors (see below), whose sum is σ = 77868560. Its totient is φ = 11124072.

The previous prime is 33372211. The next prime is 33372233. The reversal of 33372228 is 82227333.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×33372228² = 2227411203367968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33372195 and 33372204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1390498 + ... + 1390521.

Almost surely, 2^33372228 is an apocalyptic number.

It is an amenable number.

33372228 is an abundant number, since it is smaller than the sum of its proper divisors (44496332).

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

33372228 is a wasteful number, since it uses less digits than its factorization.

33372228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2781026 (or 2781024 counting only the distinct ones).

The product of its digits is 12096, while the sum is 30.

The square root of 33372228 is about 5776.8700868204. The cubic root of 33372228 is about 321.9549208398.

It can be divided in two parts, 3337 and 2228, that added together give a triangular number (5565 = T₁₀₅).

The spelling of 33372228 in words is "thirty-three million, three hundred seventy-two thousand, two hundred twenty-eight".