42740383 has 4 divisors (see below), whose sum is σ = 48846160. Its totient is φ = 36634608.

The previous prime is 42740377. The next prime is 42740387. The reversal of 42740383 is 38304724.

It is a happy number.

42740383 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42740383 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 (42740387) 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 3 ways as a sum of consecutive naturals, for example, 3052878 + ... + 3052891.

It is an arithmetic number, because the mean of its divisors is an integer number (12211540).

Almost surely, 2^42740383 is an apocalyptic number.

42740383 is a deficient number, since it is larger than the sum of its proper divisors (6105777).

42740383 is an equidigital number, since it uses as much as digits as its factorization.

42740383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6105776.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 42740383 is about 6537.6129435750. The cubic root of 42740383 is about 349.6333111989.

The spelling of 42740383 in words is "forty-two million, seven hundred forty thousand, three hundred eighty-three".