42118743 has 8 divisors (see below), whose sum is σ = 57110400. Its totient is φ = 27603128.

The previous prime is 42118733. The next prime is 42118751. The reversal of 42118743 is 34781124.

42118743 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42118743 - 2²¹ = 40021591 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42118743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42118733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118803 + ... + 119156.

It is an arithmetic number, because the mean of its divisors is an integer number (7138800).

Almost surely, 2^42118743 is an apocalyptic number.

42118743 is a deficient number, since it is larger than the sum of its proper divisors (14991657).

42118743 is a wasteful number, since it uses less digits than its factorization.

42118743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238021.

The product of its digits is 5376, while the sum is 30.

The square root of 42118743 is about 6489.8954537034. The cubic root of 42118743 is about 347.9299386637.

Adding to 42118743 its reverse (34781124), we get a palindrome (76899867).

The spelling of 42118743 in words is "forty-two million, one hundred eighteen thousand, seven hundred forty-three".