423223132444 has 48 divisors (see below), whose sum is σ = 855294019776. Its totient is φ = 179487360000.

The previous prime is 423223132417. The next prime is 423223132463. The reversal of 423223132444 is 444231322324.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5256894 + ... + 5336794.

It is an arithmetic number, because the mean of its divisors is an integer number (17818625412).

Almost surely, 2^423223132444 is an apocalyptic number.

It is an amenable number.

423223132444 is an abundant number, since it is smaller than the sum of its proper divisors (432070887332).

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

423223132444 is a wasteful number, since it uses less digits than its factorization.

423223132444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81886 (or 81884 counting only the distinct ones).

The product of its digits is 110592, while the sum is 34.

Adding to 423223132444 its reverse (444231322324), we get a palindrome (867454454768).

The spelling of 423223132444 in words is "four hundred twenty-three billion, two hundred twenty-three million, one hundred thirty-two thousand, four hundred forty-four".