42606343 has 4 divisors (see below), whose sum is σ = 45883768. Its totient is φ = 39328920.

The previous prime is 42606337. The next prime is 42606353. The reversal of 42606343 is 34360624.

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-42606343 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 (42606323) 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, 1638693 + ... + 1638718.

It is an arithmetic number, because the mean of its divisors is an integer number (11470942).

Almost surely, 2^42606343 is an apocalyptic number.

42606343 is a deficient number, since it is larger than the sum of its proper divisors (3277425).

42606343 is a wasteful number, since it uses less digits than its factorization.

42606343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3277424.

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 42606343 is about 6527.3534453100. The cubic root of 42606343 is about 349.2674282960.

Adding to 42606343 its reverse (34360624), we get a palindrome (76966967).

The spelling of 42606343 in words is "forty-two million, six hundred six thousand, three hundred forty-three".