42200173 has 4 divisors (see below), whose sum is σ = 42235740. Its totient is φ = 42164608.

The previous prime is 42200167. The next prime is 42200201. The reversal of 42200173 is 37100224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33212169 + 8988004 = 5763^2 + 2998^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42200173 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 42200173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42200143) 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, 15940 + ... + 18397.

It is an arithmetic number, because the mean of its divisors is an integer number (10558935).

Almost surely, 2^42200173 is an apocalyptic number.

It is an amenable number.

42200173 is a deficient number, since it is larger than the sum of its proper divisors (35567).

42200173 is a wasteful number, since it uses less digits than its factorization.

42200173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35566.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 42200173 is about 6496.1660231247. The cubic root of 42200173 is about 348.1540170194.

Adding to 42200173 its reverse (37100224), we get a palindrome (79300397).

The spelling of 42200173 in words is "forty-two million, two hundred thousand, one hundred seventy-three".