34424021 has 2 divisors, whose sum is σ = 34424022. Its totient is φ = 34424020.

The previous prime is 34424011. The next prime is 34424041. The reversal of 34424021 is 12042443.

It is an a-pointer prime, because the next prime (34424041) can be obtained adding 34424021 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31516996 + 2907025 = 5614^2 + 1705^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34424021 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 34423984 and 34424002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34424011) 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 as a sum of consecutive naturals, namely, 17212010 + 17212011.

It is an arithmetic number, because the mean of its divisors is an integer number (17212011).

Almost surely, 2^34424021 is an apocalyptic number.

It is an amenable number.

34424021 is a deficient number, since it is larger than the sum of its proper divisors (1).

34424021 is an equidigital number, since it uses as much as digits as its factorization.

34424021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 34424021 is about 5867.1987353421. The cubic root of 34424021 is about 325.3023490108.

Adding to 34424021 its reverse (12042443), we get a palindrome (46466464).

The spelling of 34424021 in words is "thirty-four million, four hundred twenty-four thousand, twenty-one".