34066221 has 24 divisors (see below), whose sum is σ = 55622880. Its totient is φ = 18440352.

The previous prime is 34066199. The next prime is 34066247. The reversal of 34066221 is 12266043.

It is not a de Polignac number, because 34066221 - 2⁷ = 34066093 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 34066191 and 34066200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34066321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3306 + ... + 8891.

It is an arithmetic number, because the mean of its divisors is an integer number (2317620).

Almost surely, 2^34066221 is an apocalyptic number.

It is an amenable number.

34066221 is a deficient number, since it is larger than the sum of its proper divisors (21556659).

34066221 is a wasteful number, since it uses less digits than its factorization.

34066221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12233 (or 12226 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 34066221 is about 5836.6275365146. The cubic root of 34066221 is about 324.1713675837.

The spelling of 34066221 in words is "thirty-four million, sixty-six thousand, two hundred twenty-one".