243701042 has 24 divisors (see below), whose sum is σ = 397100484. Its totient is φ = 112117824.

The previous prime is 243701027. The next prime is 243701053. The reversal of 243701042 is 240107342.

It can be written as a sum of positive squares in 6 ways, for example, as 57896881 + 185804161 = 7609^2 + 13631^2 .

It is a junction number, because it is equal to n+sod(n) for n = 243700999 and 243701017.

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 11 ways as a sum of consecutive naturals, for example, 125108 + ... + 127040.

Almost surely, 2^243701042 is an apocalyptic number.

243701042 is a deficient number, since it is larger than the sum of its proper divisors (153399442).

243701042 is a wasteful number, since it uses less digits than its factorization.

243701042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2334 (or 2321 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 243701042 is about 15610.9270064273. The cubic root of 243701042 is about 624.6246638149.

Adding to 243701042 its reverse (240107342), we get a palindrome (483808384).

The spelling of 243701042 in words is "two hundred forty-three million, seven hundred one thousand, forty-two".