334042421 has 4 divisors (see below), whose sum is σ = 334131744. Its totient is φ = 333953100.

The previous prime is 334042399. The next prime is 334042441. The reversal of 334042421 is 124240433.

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, and also an emirpimes, since its reverse is a distinct semiprime: 124240433 = 653 ⋅190261.

It is a cyclic number.

It is not a de Polignac number, because 334042421 - 2¹⁴ = 334026037 is a prime.

It is a super-3 number, since 3×334042421³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (334042441) 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, 38795 + ... + 46616.

It is an arithmetic number, because the mean of its divisors is an integer number (83532936).

Almost surely, 2^334042421 is an apocalyptic number.

It is an amenable number.

334042421 is a deficient number, since it is larger than the sum of its proper divisors (89323).

334042421 is an equidigital number, since it uses as much as digits as its factorization.

334042421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89322.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 334042421 is about 18276.8274325716. The cubic root of 334042421 is about 693.8525800645.

Adding to 334042421 its reverse (124240433), we get a palindrome (458282854).

The spelling of 334042421 in words is "three hundred thirty-four million, forty-two thousand, four hundred twenty-one".