2042842089 has 4 divisors (see below), whose sum is σ = 2723789456. Its totient is φ = 1361894724.

The previous prime is 2042842079. The next prime is 2042842103. The reversal of 2042842089 is 9802482402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2042842089 - 2¹⁶ = 2042776553 is a prime.

It is a super-3 number, since 3×2042842089³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2042842079) 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, 340473679 + ... + 340473684.

It is an arithmetic number, because the mean of its divisors is an integer number (680947364).

Almost surely, 2^2042842089 is an apocalyptic number.

It is an amenable number.

2042842089 is a deficient number, since it is larger than the sum of its proper divisors (680947367).

2042842089 is an equidigital number, since it uses as much as digits as its factorization.

2042842089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680947366.

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 2042842089 is about 45197.8106660046. The cubic root of 2042842089 is about 1268.8538420220.

The spelling of 2042842089 in words is "two billion, forty-two million, eight hundred forty-two thousand, eighty-nine".