243079122 has 192 divisors, whose sum is σ = 640880640. Its totient is φ = 60652800.

The previous prime is 243079121. The next prime is 243079127. The reversal of 243079122 is 221970342.

It is a super-4 number, since 4×243079122⁴ (a number of 35 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 243079122.

It is not an unprimeable number, because it can be changed into a prime (243079121) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 6569688 + ... + 6569724.

It is an arithmetic number, because the mean of its divisors is an integer number (3337920).

Almost surely, 2^243079122 is an apocalyptic number.

243079122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 243079122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320440320).

243079122 is an abundant number, since it is smaller than the sum of its proper divisors (397801518).

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

243079122 is a wasteful number, since it uses less digits than its factorization.

243079122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 243079122 is about 15590.9949009035. The cubic root of 243079122 is about 624.0928681225.

The spelling of 243079122 in words is "two hundred forty-three million, seventy-nine thousand, one hundred twenty-two".