34220243 has 4 divisors (see below), whose sum is σ = 34240440. Its totient is φ = 34200048.

The previous prime is 34220237. The next prime is 34220257. The reversal of 34220243 is 34202243.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 34220243 - 2¹⁰ = 34219219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34220443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7298 + ... + 11031.

It is an arithmetic number, because the mean of its divisors is an integer number (8560110).

Almost surely, 2^34220243 is an apocalyptic number.

34220243 is a deficient number, since it is larger than the sum of its proper divisors (20197).

34220243 is a wasteful number, since it uses less digits than its factorization.

34220243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20196.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 34220243 is about 5849.8070908364. The cubic root of 34220243 is about 324.6591867132.

Adding to 34220243 its reverse (34202243), we get a palindrome (68422486).

The spelling of 34220243 in words is "thirty-four million, two hundred twenty thousand, two hundred forty-three".