34420321 has 4 divisors (see below), whose sum is σ = 37068052. Its totient is φ = 31772592.

The previous prime is 34420319. The next prime is 34420327. The reversal of 34420321 is 12302443.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7639696 + 26780625 = 2764^2 + 5175^2 .

It is a cyclic number.

It is not a de Polignac number, because 34420321 - 2¹ = 34420319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34420327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1323846 + ... + 1323871.

It is an arithmetic number, because the mean of its divisors is an integer number (9267013).

Almost surely, 2^34420321 is an apocalyptic number.

It is an amenable number.

34420321 is a deficient number, since it is larger than the sum of its proper divisors (2647731).

34420321 is a wasteful number, since it uses less digits than its factorization.

34420321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2647730.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 34420321 is about 5866.8834145567. The cubic root of 34420321 is about 325.2906937598.

Adding to 34420321 its reverse (12302443), we get a palindrome (46722764).

The spelling of 34420321 in words is "thirty-four million, four hundred twenty thousand, three hundred twenty-one".