33424228 has 6 divisors (see below), whose sum is σ = 58492406. Its totient is φ = 16712112.

The previous prime is 33424213. The next prime is 33424229. The reversal of 33424228 is 82242433.

It can be written as a sum of positive squares in only one way, i.e., 33085504 + 338724 = 5752^2 + 582^2 .

It is a super-2 number, since 2×33424228² = 2234358034791968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33424196 and 33424205.

It is not an unprimeable number, because it can be changed into a prime (33424229) by changing a digit.

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 as a sum of consecutive naturals, namely, 4178025 + ... + 4178032.

Almost surely, 2^33424228 is an apocalyptic number.

It is an amenable number.

33424228 is a deficient number, since it is larger than the sum of its proper divisors (25068178).

33424228 is a wasteful number, since it uses less digits than its factorization.

33424228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8356061 (or 8356059 counting only the distinct ones).

The product of its digits is 9216, while the sum is 28.

The square root of 33424228 is about 5781.3690420176. The cubic root of 33424228 is about 322.1220554993.

The spelling of 33424228 in words is "thirty-three million, four hundred twenty-four thousand, two hundred twenty-eight".