242440422402 has 32 divisors (see below), whose sum is σ = 486294918912. Its totient is φ = 80577880704.

The previous prime is 242440422331. The next prime is 242440422407. The reversal of 242440422402 is 204224044242.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 242440422402.

It is not an unprimeable number, because it can be changed into a prime (242440422407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21646668 + ... + 21657864.

It is an arithmetic number, because the mean of its divisors is an integer number (15196716216).

Almost surely, 2^242440422402 is an apocalyptic number.

242440422402 is an abundant number, since it is smaller than the sum of its proper divisors (243854496510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242440422402 is a wasteful number, since it uses less digits than its factorization.

242440422402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21402.

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 242440422402 its reverse (204224044242), we get a palindrome (446664466644).

The spelling of 242440422402 in words is "two hundred forty-two billion, four hundred forty million, four hundred twenty-two thousand, four hundred two".