33634228 has 12 divisors (see below), whose sum is σ = 62322372. Its totient is φ = 15827840.

The previous prime is 33634207. The next prime is 33634253. The reversal of 33634228 is 82243633.

It can be written as a sum of positive squares in 2 ways, for example, as 26811684 + 6822544 = 5178^2 + 2612^2 .

It is a super-2 number, since 2×33634228² = 2262522586311968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33634228.

It is a congruent number.

It is an unprimeable number.

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, 247243 + ... + 247378.

It is an arithmetic number, because the mean of its divisors is an integer number (5193531).

Almost surely, 2^33634228 is an apocalyptic number.

It is an amenable number.

33634228 is a deficient number, since it is larger than the sum of its proper divisors (28688144).

33634228 is a wasteful number, since it uses less digits than its factorization.

33634228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494642 (or 494640 counting only the distinct ones).

The product of its digits is 20736, while the sum is 31.

The square root of 33634228 is about 5799.5023924471. The cubic root of 33634228 is about 322.7952643122.

The spelling of 33634228 in words is "thirty-three million, six hundred thirty-four thousand, two hundred twenty-eight".