423444302242 has 16 divisors (see below), whose sum is σ = 684053452152. Its totient is φ = 195427820160.

The previous prime is 423444302231. The next prime is 423444302243. The reversal of 423444302242 is 242203444324.

It can be written as a sum of positive squares in 4 ways, for example, as 192151599201 + 231292703041 = 438351^2 + 480929^2 .

It is a junction number, because it is equal to n+sod(n) for n = 423444302198 and 423444302207.

It is not an unprimeable number, because it can be changed into a prime (423444302243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338142 + ... + 980422.

Almost surely, 2^423444302242 is an apocalyptic number.

423444302242 is a deficient number, since it is larger than the sum of its proper divisors (260609149910).

423444302242 is a wasteful number, since it uses less digits than its factorization.

423444302242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667653.

The product of its (nonzero) digits is 147456, while the sum is 34.

Adding to 423444302242 its reverse (242203444324), we get a palindrome (665647746566).

The spelling of 423444302242 in words is "four hundred twenty-three billion, four hundred forty-four million, three hundred two thousand, two hundred forty-two".