842115489 has 8 divisors (see below), whose sum is σ = 1124838720. Its totient is φ = 560401296.

The previous prime is 842115487. The next prime is 842115499. The reversal of 842115489 is 984511248.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 842115489 - 2¹ = 842115487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 842115489.

It is not an unprimeable number, because it can be changed into a prime (842115487) 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, 250309 + ... + 253650.

It is an arithmetic number, because the mean of its divisors is an integer number (140604840).

Almost surely, 2^842115489 is an apocalyptic number.

It is an amenable number.

842115489 is a deficient number, since it is larger than the sum of its proper divisors (282723231).

842115489 is a wasteful number, since it uses less digits than its factorization.

842115489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504519.

The product of its digits is 92160, while the sum is 42.

The square root of 842115489 is about 29019.2261957482. The cubic root of 842115489 is about 944.3302137794.

The spelling of 842115489 in words is "eight hundred forty-two million, one hundred fifteen thousand, four hundred eighty-nine".