34310221 has 4 divisors (see below), whose sum is σ = 37429344. Its totient is φ = 31191100.

The previous prime is 34310209. The next prime is 34310249. The reversal of 34310221 is 12201343.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 34310221 - 2¹¹ = 34308173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34310195 and 34310204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34310201) 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, 1559545 + ... + 1559566.

It is an arithmetic number, because the mean of its divisors is an integer number (9357336).

Almost surely, 2^34310221 is an apocalyptic number.

It is an amenable number.

34310221 is a deficient number, since it is larger than the sum of its proper divisors (3119123).

34310221 is a wasteful number, since it uses less digits than its factorization.

34310221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3119122.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 34310221 is about 5857.4927230002. The cubic root of 34310221 is about 324.9434883991.

Adding to 34310221 its reverse (12201343), we get a palindrome (46511564).

The spelling of 34310221 in words is "thirty-four million, three hundred ten thousand, two hundred twenty-one".