42740283 has 4 divisors (see below), whose sum is σ = 56987048. Its totient is φ = 28493520.

The previous prime is 42740239. The next prime is 42740297. The reversal of 42740283 is 38204724.

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

It is not a de Polignac number, because 42740283 - 2⁶ = 42740219 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42740283.

It is not an unprimeable number, because it can be changed into a prime (42742283) 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, 7123378 + ... + 7123383.

It is an arithmetic number, because the mean of its divisors is an integer number (14246762).

Almost surely, 2^42740283 is an apocalyptic number.

42740283 is a deficient number, since it is larger than the sum of its proper divisors (14246765).

42740283 is a wasteful number, since it uses less digits than its factorization.

42740283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14246764.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 42740283 is about 6537.6052955191. The cubic root of 42740283 is about 349.6330385188.

The spelling of 42740283 in words is "forty-two million, seven hundred forty thousand, two hundred eighty-three".