243895122 has 24 divisors (see below), whose sum is σ = 530400000. Its totient is φ = 80996760.

The previous prime is 243895109. The next prime is 243895123. The reversal of 243895122 is 221598342.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (243895123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20122 + ... + 29877.

It is an arithmetic number, because the mean of its divisors is an integer number (22100000).

Almost surely, 2^243895122 is an apocalyptic number.

243895122 is an abundant number, since it is smaller than the sum of its proper divisors (286504878).

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

243895122 is a wasteful number, since it uses less digits than its factorization.

243895122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50278 (or 50275 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 243895122 is about 15617.1419280226. The cubic root of 243895122 is about 624.7904338458.

The spelling of 243895122 in words is "two hundred forty-three million, eight hundred ninety-five thousand, one hundred twenty-two".