33850221 has 8 divisors (see below), whose sum is σ = 46690080. Its totient is φ = 21788592.

The previous prime is 33850217. The next prime is 33850237. The reversal of 33850221 is 12205833.

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

It is not a de Polignac number, because 33850221 - 2² = 33850217 is a prime.

It is a super-2 number, since 2×33850221² = 2291674923497682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33850191 and 33850200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33850021) 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, 194455 + ... + 194628.

It is an arithmetic number, because the mean of its divisors is an integer number (5836260).

Almost surely, 2^33850221 is an apocalyptic number.

It is an amenable number.

33850221 is a deficient number, since it is larger than the sum of its proper divisors (12839859).

33850221 is a wasteful number, since it uses less digits than its factorization.

33850221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389115.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 33850221 is about 5818.0942756198. The cubic root of 33850221 is about 323.4847682837.

The spelling of 33850221 in words is "thirty-three million, eight hundred fifty thousand, two hundred twenty-one".