42944143 has 16 divisors (see below), whose sum is σ = 48318336. Its totient is φ = 37830240.

The previous prime is 42944093. The next prime is 42944149. The reversal of 42944143 is 34144924.

It is a cyclic number.

It is not a de Polignac number, because 42944143 - 2⁹ = 42943631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42944149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76821 + ... + 77377.

It is an arithmetic number, because the mean of its divisors is an integer number (3019896).

Almost surely, 2^42944143 is an apocalyptic number.

42944143 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

42944143 is a deficient number, since it is larger than the sum of its proper divisors (5374193).

42944143 is a wasteful number, since it uses less digits than its factorization.

42944143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774.

The product of its digits is 13824, while the sum is 31.

The square root of 42944143 is about 6553.1780839529. The cubic root of 42944143 is about 350.1880431704.

The spelling of 42944143 in words is "forty-two million, nine hundred forty-four thousand, one hundred forty-three".