42091083 has 10 divisors (see below), whose sum is σ = 62876924. Its totient is φ = 28060668.

The previous prime is 42091079. The next prime is 42091097. The reversal of 42091083 is 38019024.

It is not a de Polignac number, because 42091083 - 2² = 42091079 is a prime.

It is a super-2 number, since 2×42091083² = 3543318536225778, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42091003) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 259741 + ... + 259902.

Almost surely, 2^42091083 is an apocalyptic number.

42091083 is a deficient number, since it is larger than the sum of its proper divisors (20785841).

42091083 is an equidigital number, since it uses as much as digits as its factorization.

42091083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519655 (or 519646 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 42091083 is about 6487.7640986707. The cubic root of 42091083 is about 347.8537584102.

The spelling of 42091083 in words is "forty-two million, ninety-one thousand, eighty-three".