33090213 has 8 divisors (see below), whose sum is σ = 47514208. Its totient is φ = 20363184.

The previous prime is 33090199. The next prime is 33090223. The reversal of 33090213 is 31209033.

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

It is not a de Polignac number, because 33090213 - 2¹² = 33086117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 33090213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33090223) 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, 424195 + ... + 424272.

It is an arithmetic number, because the mean of its divisors is an integer number (5939276).

Almost surely, 2^33090213 is an apocalyptic number.

It is an amenable number.

33090213 is a deficient number, since it is larger than the sum of its proper divisors (14423995).

33090213 is a wasteful number, since it uses less digits than its factorization.

33090213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848483.

The product of its (nonzero) digits is 486, while the sum is 21.

The square root of 33090213 is about 5752.4093213192. The cubic root of 33090213 is about 321.0454511975.

Adding to 33090213 its reverse (31209033), we get a palindrome (64299246).

The spelling of 33090213 in words is "thirty-three million, ninety thousand, two hundred thirteen".