42006223 has 4 divisors (see below), whose sum is σ = 48007120. Its totient is φ = 36005328.

The previous prime is 42006199. The next prime is 42006277. The reversal of 42006223 is 32260024.

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 42006223 - 2⁵ = 42006191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42006223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42006323) 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, 3000438 + ... + 3000451.

It is an arithmetic number, because the mean of its divisors is an integer number (12001780).

Almost surely, 2^42006223 is an apocalyptic number.

42006223 is a deficient number, since it is larger than the sum of its proper divisors (6000897).

42006223 is an equidigital number, since it uses as much as digits as its factorization.

42006223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6000896.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 42006223 is about 6481.2207954983. The cubic root of 42006223 is about 347.6198313502.

Adding to 42006223 its reverse (32260024), we get a palindrome (74266247).

The spelling of 42006223 in words is "forty-two million, six thousand, two hundred twenty-three".