242040424 has 16 divisors (see below), whose sum is σ = 480521700. Its totient is φ = 113901312.

The previous prime is 242040419. The next prime is 242040439. The reversal of 242040424 is 424040242.

It can be written as a sum of positive squares in 2 ways, for example, as 240808324 + 1232100 = 15518^2 + 1110^2 .

It is a junction number, because it is equal to n+sod(n) for n = 242040395 and 242040404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 889719 + ... + 889990.

Almost surely, 2^242040424 is an apocalyptic number.

It is an amenable number.

242040424 is a deficient number, since it is larger than the sum of its proper divisors (238481276).

242040424 is a wasteful number, since it uses less digits than its factorization.

242040424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779732 (or 1779728 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 242040424 is about 15557.6484084196. The cubic root of 242040424 is about 623.2026647723.

Adding to 242040424 its reverse (424040242), we get a palindrome (666080666).

The spelling of 242040424 in words is "two hundred forty-two million, forty thousand, four hundred twenty-four".