842278 has 8 divisors (see below), whose sum is σ = 1272240. Its totient is φ = 418200.

The previous prime is 842267. The next prime is 842279. The reversal of 842278 is 872248.

842278 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842279) 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, 1093 + ... + 1696.

It is an arithmetic number, because the mean of its divisors is an integer number (159030).

2⁸⁴²²⁷⁸ is an apocalyptic number.

842278 is a deficient number, since it is larger than the sum of its proper divisors (429962).

842278 is a wasteful number, since it uses less digits than its factorization.

842278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2942.

The product of its digits is 7168, while the sum is 31.

The square root of 842278 is about 917.7570484611. The cubic root of 842278 is about 94.4390955320.

The spelling of 842278 in words is "eight hundred forty-two thousand, two hundred seventy-eight".