42202243 has 4 divisors (see below), whose sum is σ = 43231608. Its totient is φ = 41172880.

The previous prime is 42202241. The next prime is 42202247. The reversal of 42202243 is 34220224.

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 42202243 - 2¹ = 42202241 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 42202243.

It is not an unprimeable number, because it can be changed into a prime (42202241) 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, 514621 + ... + 514702.

It is an arithmetic number, because the mean of its divisors is an integer number (10807902).

Almost surely, 2^42202243 is an apocalyptic number.

42202243 is a deficient number, since it is larger than the sum of its proper divisors (1029365).

42202243 is a wasteful number, since it uses less digits than its factorization.

42202243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029364.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 42202243 is about 6496.3253459167. The cubic root of 42202243 is about 348.1597094687.

Adding to 42202243 its reverse (34220224), we get a palindrome (76422467).

The spelling of 42202243 in words is "forty-two million, two hundred two thousand, two hundred forty-three".