17340421 has 8 divisors (see below), whose sum is σ = 20069120. Its totient is φ = 14674608.

The previous prime is 17340403. The next prime is 17340437. The reversal of 17340421 is 12404371.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 17340421 - 2¹⁷ = 17209349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 17340392 and 17340401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17340461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15126 + ... + 16231.

It is an arithmetic number, because the mean of its divisors is an integer number (2508640).

Almost surely, 2^17340421 is an apocalyptic number.

It is an amenable number.

17340421 is a deficient number, since it is larger than the sum of its proper divisors (2728699).

17340421 is an equidigital number, since it uses as much as digits as its factorization.

17340421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31443.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 17340421 is about 4164.1831131688. The cubic root of 17340421 is about 258.8331388964.

Adding to 17340421 its reverse (12404371), we get a palindrome (29744792).

The spelling of 17340421 in words is "seventeen million, three hundred forty thousand, four hundred twenty-one".