842453836 has 48 divisors (see below), whose sum is σ = 1795542336. Its totient is φ = 337618944.

The previous prime is 842453809. The next prime is 842453849. The reversal of 842453836 is 638354248.

842453836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×842453836² = 1419456931582229792, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 842453792 and 842453801.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69096 + ... + 80368.

It is an arithmetic number, because the mean of its divisors is an integer number (37407132).

Almost surely, 2^842453836 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 842453836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (897771168).

842453836 is an abundant number, since it is smaller than the sum of its proper divisors (953088500).

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

842453836 is a wasteful number, since it uses less digits than its factorization.

842453836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11458 (or 11456 counting only the distinct ones).

The product of its digits is 552960, while the sum is 43.

The square root of 842453836 is about 29025.0553143314. The cubic root of 842453836 is about 944.4566685302.

The spelling of 842453836 in words is "eight hundred forty-two million, four hundred fifty-three thousand, eight hundred thirty-six".