842218258 has 16 divisors (see below), whose sum is σ = 1448947584. Its totient is φ = 359664480.

The previous prime is 842218249. The next prime is 842218271. The reversal of 842218258 is 852812248.

It is a self number, because there is not a number n which added to its sum of digits gives 842218258.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103110 + ... + 110977.

It is an arithmetic number, because the mean of its divisors is an integer number (90559224).

Almost surely, 2^842218258 is an apocalyptic number.

842218258 is a deficient number, since it is larger than the sum of its proper divisors (606729326).

842218258 is a wasteful number, since it uses less digits than its factorization.

842218258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214377.

The product of its digits is 81920, while the sum is 40.

The square root of 842218258 is about 29020.9968471105. The cubic root of 842218258 is about 944.3686265329.

The spelling of 842218258 in words is "eight hundred forty-two million, two hundred eighteen thousand, two hundred fifty-eight".