42299843 has 4 divisors (see below), whose sum is σ = 43443120. Its totient is φ = 41156568.

The previous prime is 42299827. The next prime is 42299867. The reversal of 42299843 is 34899224.

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 42299843 - 2⁴ = 42299827 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42299843.

It is not an unprimeable number, because it can be changed into a prime (42299813) 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, 571583 + ... + 571656.

It is an arithmetic number, because the mean of its divisors is an integer number (10860780).

Almost surely, 2^42299843 is an apocalyptic number.

42299843 is a deficient number, since it is larger than the sum of its proper divisors (1143277).

42299843 is a wasteful number, since it uses less digits than its factorization.

42299843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143276.

The product of its digits is 124416, while the sum is 41.

The square root of 42299843 is about 6503.8329468091. The cubic root of 42299843 is about 348.4278960520.

The spelling of 42299843 in words is "forty-two million, two hundred ninety-nine thousand, eight hundred forty-three".