242040400443 has 12 divisors (see below), whose sum is σ = 360891780288. Its totient is φ = 156155096880.

The previous prime is 242040400411. The next prime is 242040400447. The reversal of 242040400443 is 344004040242.

It is a happy number.

It is not a de Polignac number, because 242040400443 - 2⁵ = 242040400411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242040400447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 433763880 + ... + 433764437.

It is an arithmetic number, because the mean of its divisors is an integer number (30074315024).

Almost surely, 2^242040400443 is an apocalyptic number.

242040400443 is a deficient number, since it is larger than the sum of its proper divisors (118851379845).

242040400443 is a wasteful number, since it uses less digits than its factorization.

242040400443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867528354 (or 867528351 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 27.

Adding to 242040400443 its reverse (344004040242), we get a palindrome (586044440685).

The spelling of 242040400443 in words is "two hundred forty-two billion, forty million, four hundred thousand, four hundred forty-three".