42204143 has 4 divisors (see below), whose sum is σ = 42300720. Its totient is φ = 42107568.

The previous prime is 42204137. The next prime is 42204179. The reversal of 42204143 is 34140224.

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 42204143 - 2⁶ = 42204079 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 (42204133) 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, 47630 + ... + 48507.

It is an arithmetic number, because the mean of its divisors is an integer number (10575180).

Almost surely, 2^42204143 is an apocalyptic number.

42204143 is a deficient number, since it is larger than the sum of its proper divisors (96577).

42204143 is an equidigital number, since it uses as much as digits as its factorization.

42204143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96576.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 42204143 is about 6496.4715807891. The cubic root of 42204143 is about 348.1649342583.

Adding to 42204143 its reverse (34140224), we get a palindrome (76344367).

The spelling of 42204143 in words is "forty-two million, two hundred four thousand, one hundred forty-three".