423443312244 has 36 divisors (see below), whose sum is σ = 1133333572644. Its totient is φ = 132844960512.

The previous prime is 423443312213. The next prime is 423443312249. The reversal of 423443312244 is 442213344324.

423443312244 is a `hidden beast` number, since 42 + 3 + 44 + 331 + 2 + 244 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 241061360400 + 182381951844 = 490980^2 + 427062^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 423443312199 and 423443312208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423443312249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 345949807 + ... + 345951030.

It is an arithmetic number, because the mean of its divisors is an integer number (31481488129).

Almost surely, 2^423443312244 is an apocalyptic number.

It is an amenable number.

423443312244 is an abundant number, since it is smaller than the sum of its proper divisors (709890260400).

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

423443312244 is a wasteful number, since it uses less digits than its factorization.

423443312244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691900864 (or 691900859 counting only the distinct ones).

The product of its digits is 221184, while the sum is 36.

Adding to 423443312244 its reverse (442213344324), we get a palindrome (865656656568).

The spelling of 423443312244 in words is "four hundred twenty-three billion, four hundred forty-three million, three hundred twelve thousand, two hundred forty-four".