42205343 has 4 divisors (see below), whose sum is σ = 42226128. Its totient is φ = 42184560.

The previous prime is 42205337. The next prime is 42205369. The reversal of 42205343 is 34350224.

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 42205343 - 2⁶ = 42205279 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 (42202343) 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, 6971 + ... + 11532.

It is an arithmetic number, because the mean of its divisors is an integer number (10556532).

Almost surely, 2^42205343 is an apocalyptic number.

42205343 is a deficient number, since it is larger than the sum of its proper divisors (20785).

42205343 is a wasteful number, since it uses less digits than its factorization.

42205343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20784.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 42205343 is about 6496.5639379598. The cubic root of 42205343 is about 348.1682340446.

Adding to 42205343 its reverse (34350224), we get a palindrome (76555567).

The spelling of 42205343 in words is "forty-two million, two hundred five thousand, three hundred forty-three".