843943242 has 16 divisors (see below), whose sum is σ = 1695133440. Its totient is φ = 280106592.

The previous prime is 843943201. The next prime is 843943337. The reversal of 843943242 is 242349348.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 843943242.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300442 + ... + 303237.

It is an arithmetic number, because the mean of its divisors is an integer number (105945840).

Almost surely, 2^843943242 is an apocalyptic number.

843943242 is an abundant number, since it is smaller than the sum of its proper divisors (851190198).

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

843943242 is a wasteful number, since it uses less digits than its factorization.

843943242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603917.

The product of its digits is 165888, while the sum is 39.

The square root of 843943242 is about 29050.7012307793. The cubic root of 843943242 is about 945.0129210741.

It can be divided in two parts, 8439 and 43242, that added together give a triangular number (51681 = T₃₂₁).

The spelling of 843943242 in words is "eight hundred forty-three million, nine hundred forty-three thousand, two hundred forty-two".