33242213 has 8 divisors (see below), whose sum is σ = 33592320. Its totient is φ = 32894320.

The previous prime is 33242171. The next prime is 33242219. The reversal of 33242213 is 31224233.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33242213 is a prime.

It is a super-2 number, since 2×33242213² = 2210089450274738, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33242219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51056 + ... + 51702.

It is an arithmetic number, because the mean of its divisors is an integer number (4199040).

Almost surely, 2^33242213 is an apocalyptic number.

It is an amenable number.

33242213 is a deficient number, since it is larger than the sum of its proper divisors (350107).

33242213 is a wasteful number, since it uses less digits than its factorization.

33242213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107.

The product of its digits is 864, while the sum is 20.

The square root of 33242213 is about 5765.6060392642. The cubic root of 33242213 is about 321.5362748676.

Adding to 33242213 its reverse (31224233), we get a palindrome (64466446).

The spelling of 33242213 in words is "thirty-three million, two hundred forty-two thousand, two hundred thirteen".