243292842 has 64 divisors (see below), whose sum is σ = 587583360. Its totient is φ = 74172672.

The previous prime is 243292817. The next prime is 243292849. The reversal of 243292842 is 248292342.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 243292797 and 243292806.

It is not an unprimeable number, because it can be changed into a prime (243292849) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77793 + ... + 80859.

It is an arithmetic number, because the mean of its divisors is an integer number (9180990).

Almost surely, 2^243292842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243292842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293791680).

243292842 is an abundant number, since it is smaller than the sum of its proper divisors (344290518).

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

243292842 is a wasteful number, since it uses less digits than its factorization.

243292842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3204 (or 3198 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 243292842 is about 15597.8473514777. The cubic root of 243292842 is about 624.2757194993.

The spelling of 243292842 in words is "two hundred forty-three million, two hundred ninety-two thousand, eight hundred forty-two".