843294140 has 48 divisors (see below), whose sum is σ = 1924086528. Its totient is φ = 308603904.

The previous prime is 843294107. The next prime is 843294167. The reversal of 843294140 is 41492348.

843294140 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 2×843294140² = 1422290013116679200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 843294140.

It is a congruent number.

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, 15029 + ... + 43731.

It is an arithmetic number, because the mean of its divisors is an integer number (40085136).

Almost surely, 2^843294140 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 843294140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (962043264).

843294140 is an abundant number, since it is smaller than the sum of its proper divisors (1080792388).

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

843294140 is a wasteful number, since it uses less digits than its factorization.

843294140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28838 (or 28836 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 843294140 is about 29039.5272000079. The cubic root of 843294140 is about 944.7705796947.

The spelling of 843294140 in words is "eight hundred forty-three million, two hundred ninety-four thousand, one hundred forty".