42743144 has 16 divisors (see below), whose sum is σ = 80237220. Its totient is φ = 21346560.

The previous prime is 42743143. The next prime is 42743153. The reversal of 42743144 is 44134724.

It can be written as a sum of positive squares in 2 ways, for example, as 38068900 + 4674244 = 6170^2 + 2162^2 .

It is not an unprimeable number, because it can be changed into a prime (42743143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5552 + ... + 10784.

Almost surely, 2^42743144 is an apocalyptic number.

It is an amenable number.

42743144 is a deficient number, since it is larger than the sum of its proper divisors (37494076).

42743144 is a wasteful number, since it uses less digits than its factorization.

42743144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6260 (or 6256 counting only the distinct ones).

The product of its digits is 10752, while the sum is 29.

The square root of 42743144 is about 6537.8241028648. The cubic root of 42743144 is about 349.6408397290.

Adding to 42743144 its reverse (44134724), we get a palindrome (86877868).

The spelling of 42743144 in words is "forty-two million, seven hundred forty-three thousand, one hundred forty-four".