243422426 has 16 divisors (see below), whose sum is σ = 393724800. Its totient is φ = 112204848.

The previous prime is 243422401. The next prime is 243422479. The reversal of 243422426 is 624224342.

It is a happy number.

243422426 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 16235 + ... + 27393.

It is an arithmetic number, because the mean of its divisors is an integer number (24607800).

Almost surely, 2^243422426 is an apocalyptic number.

243422426 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

243422426 is a deficient number, since it is larger than the sum of its proper divisors (150302374).

243422426 is a wasteful number, since it uses less digits than its factorization.

243422426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12013.

The product of its digits is 18432, while the sum is 29.

The square root of 243422426 is about 15602.0007050378. Note that the first 3 decimals coincide. The cubic root of 243422426 is about 624.3865349073.

Adding to 243422426 its reverse (624224342), we get a palindrome (867646768).

The spelling of 243422426 in words is "two hundred forty-three million, four hundred twenty-two thousand, four hundred twenty-six".