42340343 has 4 divisors (see below), whose sum is σ = 42466320. Its totient is φ = 42214368.

The previous prime is 42340339. The next prime is 42340351. The reversal of 42340343 is 34304324.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42340343 - 2² = 42340339 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 (42340943) 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, 62483 + ... + 63156.

It is an arithmetic number, because the mean of its divisors is an integer number (10616580).

Almost surely, 2^42340343 is an apocalyptic number.

42340343 is a deficient number, since it is larger than the sum of its proper divisors (125977).

42340343 is a wasteful number, since it uses less digits than its factorization.

42340343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125976.

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

The square root of 42340343 is about 6506.9457505038. The cubic root of 42340343 is about 348.5390613862.

Adding to 42340343 its reverse (34304324), we get a palindrome (76644667).

The spelling of 42340343 in words is "forty-two million, three hundred forty thousand, three hundred forty-three".