42781083 has 8 divisors (see below), whose sum is σ = 57565200. Its totient is φ = 28258848.

The previous prime is 42781051. The next prime is 42781091. The reversal of 42781083 is 38018724.

42781083 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 not a de Polignac number, because 42781083 - 2⁵ = 42781051 is a prime.

It is a super-3 number, since 3×42781083³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (42781043) 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, 65088 + ... + 65741.

It is an arithmetic number, because the mean of its divisors is an integer number (7195650).

Almost surely, 2^42781083 is an apocalyptic number.

42781083 is a deficient number, since it is larger than the sum of its proper divisors (14784117).

42781083 is a wasteful number, since it uses less digits than its factorization.

42781083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130941.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 42781083 is about 6540.7249598191. The cubic root of 42781083 is about 349.7442567126.

The spelling of 42781083 in words is "forty-two million, seven hundred eighty-one thousand, eighty-three".