423430243433244 has 72 divisors (see below), whose sum is σ = 1076305828346112. Its totient is φ = 140356890616320.

The previous prime is 423430243433213. The next prime is 423430243433273. The reversal of 423430243433244 is 442334342034324.

423430243433244 is a `hidden beast` number, since 4 + 2 + 3 + 4 + 30 + 243 + 4 + 332 + 44 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 423430243433244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9877992 + ... + 30731664.

Almost surely, 2^{423430243433244} is an apocalyptic number.

It is an amenable number.

423430243433244 is an abundant number, since it is smaller than the sum of its proper divisors (652875584912868).

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

423430243433244 is a wasteful number, since it uses less digits than its factorization.

423430243433244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20856827 (or 20856822 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 45.

Adding to 423430243433244 its reverse (442334342034324), we get a palindrome (865764585467568).

The spelling of 423430243433244 in words is "four hundred twenty-three trillion, four hundred thirty billion, two hundred forty-three million, four hundred thirty-three thousand, two hundred forty-four".