243041022 has 48 divisors (see below), whose sum is σ = 608605920. Its totient is φ = 68656896.

The previous prime is 243041003. The next prime is 243041033. The reversal of 243041022 is 220140342.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 243040986 and 243041004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 378 + ... + 22050.

It is an arithmetic number, because the mean of its divisors is an integer number (12679290).

Almost surely, 2^243041022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243041022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (304302960).

243041022 is an abundant number, since it is smaller than the sum of its proper divisors (365564898).

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

243041022 is a wasteful number, since it uses less digits than its factorization.

243041022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21777 (or 21774 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 243041022 is about 15589.7729938572. The cubic root of 243041022 is about 624.0602598363.

Adding to 243041022 its reverse (220140342), we get a palindrome (463181364).

The spelling of 243041022 in words is "two hundred forty-three million, forty-one thousand, twenty-two".