42343505 has 8 divisors (see below), whose sum is σ = 50847912. Its totient is φ = 33851008.

The previous prime is 42343501. The next prime is 42343517. The reversal of 42343505 is 50534324.

It can be written as a sum of positive squares in 4 ways, for example, as 132496 + 42211009 = 364^2 + 6497^2 .

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 42343505 - 2² = 42343501 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42343501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9989 + ... + 13581.

It is an arithmetic number, because the mean of its divisors is an integer number (6355989).

Almost surely, 2^42343505 is an apocalyptic number.

It is an amenable number.

42343505 is a deficient number, since it is larger than the sum of its proper divisors (8504407).

42343505 is a wasteful number, since it uses less digits than its factorization.

42343505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5955.

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 42343505 is about 6507.1887171036. The cubic root of 42343505 is about 348.5477375329.

Adding to 42343505 its reverse (50534324), we get a palindrome (92877829).

The spelling of 42343505 in words is "forty-two million, three hundred forty-three thousand, five hundred five".