33668212 has 12 divisors (see below), whose sum is σ = 59062276. Its totient is φ = 16793280.

The previous prime is 33668147. The next prime is 33668233. The reversal of 33668212 is 21286633.

It can be written as a sum of positive squares in 2 ways, for example, as 7001316 + 26666896 = 2646^2 + 5164^2 .

It is a super-2 number, since 2×33668212² = 2267096998553888, which contains 22 as substring.

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, 8313 + ... + 11680.

Almost surely, 2^33668212 is an apocalyptic number.

It is an amenable number.

33668212 is a deficient number, since it is larger than the sum of its proper divisors (25394064).

33668212 is a wasteful number, since it uses less digits than its factorization.

33668212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20418 (or 20416 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 33668212 is about 5802.4315592689. The cubic root of 33668212 is about 322.9039450851.

The spelling of 33668212 in words is "thirty-three million, six hundred sixty-eight thousand, two hundred twelve".