842130872 has 64 divisors (see below), whose sum is σ = 1788272640. Its totient is φ = 368323200.

The previous prime is 842130871. The next prime is 842130881. The reversal of 842130872 is 278031248.

842130872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842130871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 536633 + ... + 538199.

It is an arithmetic number, because the mean of its divisors is an integer number (27941760).

Almost surely, 2^842130872 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 842130872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (894136320).

842130872 is an abundant number, since it is smaller than the sum of its proper divisors (946141768).

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

842130872 is a wasteful number, since it uses less digits than its factorization.

842130872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812 (or 1808 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 842130872 is about 29019.4912429560. The cubic root of 842130872 is about 944.3359637996.

It can be divided in two parts, 8421 and 30872, that added together give a palindrome (39293).

The spelling of 842130872 in words is "eight hundred forty-two million, one hundred thirty thousand, eight hundred seventy-two".