423340432342044 has 24 divisors (see below), whose sum is σ = 1128907819579008. Its totient is φ = 120954409240560.

The previous prime is 423340432342043. The next prime is 423340432342057. The reversal of 423340432342044 is 440243234043324.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 423340432341987 and 423340432342005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423340432342043) 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, 2519883525762 + ... + 2519883525929.

It is an arithmetic number, because the mean of its divisors is an integer number (47037825815792).

Almost surely, 2^{423340432342044} is an apocalyptic number.

It is an amenable number.

423340432342044 is an abundant number, since it is smaller than the sum of its proper divisors (705567387236964).

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

423340432342044 is a wasteful number, since it uses less digits than its factorization.

423340432342044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5039767051705 (or 5039767051703 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 42.

Adding to 423340432342044 its reverse (440243234043324), we get a palindrome (863583666385368).

The spelling of 423340432342044 in words is "four hundred twenty-three trillion, three hundred forty billion, four hundred thirty-two million, three hundred forty-two thousand, forty-four".