34343221 has 16 divisors (see below), whose sum is σ = 39024000. Its totient is φ = 29937600.

The previous prime is 34343201. The next prime is 34343237. The reversal of 34343221 is 12234343.

It is a happy number.

It is not a de Polignac number, because 34343221 - 2⁵ = 34343189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34343192 and 34343201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34343201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63211 + ... + 63751.

It is an arithmetic number, because the mean of its divisors is an integer number (2439000).

Almost surely, 2^34343221 is an apocalyptic number.

It is an amenable number.

34343221 is a deficient number, since it is larger than the sum of its proper divisors (4680779).

34343221 is a wasteful number, since it uses less digits than its factorization.

34343221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780.

The product of its digits is 1728, while the sum is 22.

The square root of 34343221 is about 5860.3089509001. The cubic root of 34343221 is about 325.0476332550.

Adding to 34343221 its reverse (12234343), we get a palindrome (46577564).

The spelling of 34343221 in words is "thirty-four million, three hundred forty-three thousand, two hundred twenty-one".