202423422442 has 8 divisors (see below), whose sum is σ = 304029980100. Its totient is φ = 101080095744.

The previous prime is 202423422407. The next prime is 202423422457. The reversal of 202423422442 is 244224324202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 196638146721 + 5785275721 = 443439^2 + 76061^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 65805817 + ... + 65808892.

Almost surely, 2^202423422442 is an apocalyptic number.

202423422442 is a deficient number, since it is larger than the sum of its proper divisors (101606557658).

202423422442 is a wasteful number, since it uses less digits than its factorization.

202423422442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131615480.

The product of its (nonzero) digits is 49152, while the sum is 31.

Adding to 202423422442 its reverse (244224324202), we get a palindrome (446647746644).

The spelling of 202423422442 in words is "two hundred two billion, four hundred twenty-three million, four hundred twenty-two thousand, four hundred forty-two".