842408 has 32 divisors (see below), whose sum is σ = 1848000. Its totient is φ = 359856.

The previous prime is 842407. The next prime is 842417. The reversal of 842408 is 804248.

842408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (842407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2591 + ... + 2897.

It is an arithmetic number, because the mean of its divisors is an integer number (57750).

2⁸⁴²⁴⁰⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 842408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (924000).

842408 is an abundant number, since it is smaller than the sum of its proper divisors (1005592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

842408 is a wasteful number, since it uses less digits than its factorization.

842408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 842408 is about 917.8278705727. The cubic root of 842408 is about 94.4439539639.

It can be divided in two parts, 84240 and 8, that added together give a palindrome (84248).

The spelling of 842408 in words is "eight hundred forty-two thousand, four hundred eight".