243022429 has 8 divisors (see below), whose sum is σ = 277111800. Its totient is φ = 211132416.

The previous prime is 243022399. The next prime is 243022453. The reversal of 243022429 is 924220342.

It can be written as a sum of positive squares in 4 ways, for example, as 504100 + 242518329 = 710^2 + 15573^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 243022429 - 2⁹ = 243021917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243022397 and 243022406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243022459) 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 7 ways as a sum of consecutive naturals, for example, 549604 + ... + 550045.

It is an arithmetic number, because the mean of its divisors is an integer number (34638975).

Almost surely, 2^243022429 is an apocalyptic number.

It is an amenable number.

243022429 is a deficient number, since it is larger than the sum of its proper divisors (34089371).

243022429 is a wasteful number, since it uses less digits than its factorization.

243022429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099679.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 243022429 is about 15589.1766620306. The cubic root of 243022429 is about 624.0443455842.

The spelling of 243022429 in words is "two hundred forty-three million, twenty-two thousand, four hundred twenty-nine".