33528212 has 6 divisors (see below), whose sum is σ = 58674378. Its totient is φ = 16764104.

The previous prime is 33528211. The next prime is 33528221. The reversal of 33528212 is 21282533.

It can be written as a sum of positive squares in only one way, i.e., 28879876 + 4648336 = 5374^2 + 2156^2 .

It is a super-2 number, since 2×33528212² = 2248281999833888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33528211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4191023 + ... + 4191030.

It is an arithmetic number, because the mean of its divisors is an integer number (9779063).

Almost surely, 2^33528212 is an apocalyptic number.

It is an amenable number.

33528212 is a deficient number, since it is larger than the sum of its proper divisors (25146166).

33528212 is a wasteful number, since it uses less digits than its factorization.

33528212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8382057 (or 8382055 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 33528212 is about 5790.3550841032. The cubic root of 33528212 is about 322.4557542007.

The spelling of 33528212 in words is "thirty-three million, five hundred twenty-eight thousand, two hundred twelve".