243922442 has 8 divisors (see below), whose sum is σ = 366378336. Its totient is φ = 121796332.

The previous prime is 243922421. The next prime is 243922447. The reversal of 243922442 is 244229342.

243922442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×243922442² = 118996315422486728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243922399 and 243922408.

It is not an unprimeable number, because it can be changed into a prime (243922447) 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, 80588 + ... + 83559.

It is an arithmetic number, because the mean of its divisors is an integer number (45797292).

Almost surely, 2^243922442 is an apocalyptic number.

243922442 is a deficient number, since it is larger than the sum of its proper divisors (122455894).

243922442 is a wasteful number, since it uses less digits than its factorization.

243922442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164892.

The product of its digits is 27648, while the sum is 32.

The square root of 243922442 is about 15618.0165834206. The cubic root of 243922442 is about 624.8137616833.

The spelling of 243922442 in words is "two hundred forty-three million, nine hundred twenty-two thousand, four hundred forty-two".