33672212 has 36 divisors (see below), whose sum is σ = 69066900. Its totient is φ = 14321664.

The previous prime is 33672181. The next prime is 33672239. The reversal of 33672212 is 21227633.

It can be written as a sum of positive squares in 2 ways, for example, as 14714896 + 18957316 = 3836^2 + 4354^2 .

It is a super-2 number, since 2×33672212² = 2267635721945888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28628 + ... + 29780.

It is an arithmetic number, because the mean of its divisors is an integer number (1918525).

Almost surely, 2^33672212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33672212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34533450).

33672212 is an abundant number, since it is smaller than the sum of its proper divisors (35394688).

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

33672212 is a wasteful number, since it uses less digits than its factorization.

33672212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320 (or 1311 counting only the distinct ones).

The product of its digits is 3024, while the sum is 26.

The square root of 33672212 is about 5802.7762321151. The cubic root of 33672212 is about 322.9167322668.

Adding to 33672212 its reverse (21227633), we get a palindrome (54899845).

The spelling of 33672212 in words is "thirty-three million, six hundred seventy-two thousand, two hundred twelve".