33212394 has 12 divisors (see below), whose sum is σ = 71960226. Its totient is φ = 11070792.

The previous prime is 33212393. The next prime is 33212401. The reversal of 33212394 is 49321233.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 33212169 + 225 = 5763^2 + 15^2 .

It is a super-2 number, since 2×33212394² = 2206126230422472, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (33212393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 922549 + ... + 922584.

Almost surely, 2^33212394 is an apocalyptic number.

33212394 is an abundant number, since it is smaller than the sum of its proper divisors (38747832).

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

33212394 is a wasteful number, since it uses less digits than its factorization.

33212394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845141 (or 1845138 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 33212394 is about 5763.0195210497. The cubic root of 33212394 is about 321.4401043904.

The spelling of 33212394 in words is "thirty-three million, two hundred twelve thousand, three hundred ninety-four".