243524426 has 16 divisors (see below), whose sum is σ = 378370440. Its totient is φ = 117411840.

The previous prime is 243524401. The next prime is 243524429. The reversal of 243524426 is 624425342.

It is a happy number.

243524426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 186295201 + 57229225 = 13649^2 + 7565^2 .

It is a junction number, because it is equal to n+sod(n) for n = 243524392 and 243524401.

It is not an unprimeable number, because it can be changed into a prime (243524429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52106 + ... + 56586.

Almost surely, 2^243524426 is an apocalyptic number.

243524426 is a deficient number, since it is larger than the sum of its proper divisors (134846014).

243524426 is a wasteful number, since it uses less digits than its factorization.

243524426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5449.

The product of its digits is 46080, while the sum is 32.

The square root of 243524426 is about 15605.2691742245. The cubic root of 243524426 is about 624.4737338480.

Adding to 243524426 its reverse (624425342), we get a palindrome (867949768).

The spelling of 243524426 in words is "two hundred forty-three million, five hundred twenty-four thousand, four hundred twenty-six".