42304343 has 4 divisors (see below), whose sum is σ = 42347280. Its totient is φ = 42261408.

The previous prime is 42304321. The next prime is 42304349. The reversal of 42304343 is 34340324.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42304343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42304349) 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, 19955 + ... + 21972.

It is an arithmetic number, because the mean of its divisors is an integer number (10586820).

Almost surely, 2^42304343 is an apocalyptic number.

42304343 is a deficient number, since it is larger than the sum of its proper divisors (42937).

42304343 is a wasteful number, since it uses less digits than its factorization.

42304343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42936.

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 42304343 is about 6504.1788874538. The cubic root of 42304343 is about 348.4402512589.

Adding to 42304343 its reverse (34340324), we get a palindrome (76644667).

The spelling of 42304343 in words is "forty-two million, three hundred four thousand, three hundred forty-three".