243989022 has 8 divisors (see below), whose sum is σ = 487978056. Its totient is φ = 81329672.

The previous prime is 243989021. The next prime is 243989023. The reversal of 243989022 is 220989342.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (243989021) and next prime (243989023).

It is a sphenic number, since it is the product of 3 distinct primes.

243989022 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243989021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20332413 + ... + 20332424.

It is an arithmetic number, because the mean of its divisors is an integer number (60997257).

Almost surely, 2^243989022 is an apocalyptic number.

243989022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

243989022 is a wasteful number, since it uses less digits than its factorization.

243989022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40664842.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 243989022 is about 15620.1479506437. The cubic root of 243989022 is about 624.8706053197.

The spelling of 243989022 in words is "two hundred forty-three million, nine hundred eighty-nine thousand, twenty-two".