321444423 has 8 divisors (see below), whose sum is σ = 476214000. Its totient is φ = 214296264.

The previous prime is 321444401. The next prime is 321444437. The reversal of 321444423 is 324444123.

It is a happy number.

321444423 is a `hidden beast` number, since 3 + 214 + 4 + 442 + 3 = 666.

It is not a de Polignac number, because 321444423 - 2⁹ = 321443911 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 11905349 = 321444423 / (3 + 2 + 1 + 4 + 4 + 4 + 4 + 2 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321444463) 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, 5952648 + ... + 5952701.

It is an arithmetic number, because the mean of its divisors is an integer number (59526750).

Almost surely, 2^321444423 is an apocalyptic number.

321444423 is a deficient number, since it is larger than the sum of its proper divisors (154769577).

321444423 is a wasteful number, since it uses less digits than its factorization.

321444423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11905358 (or 11905352 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 321444423 is about 17928.8712137714. The cubic root of 321444423 is about 685.0179710063.

Adding to 321444423 its reverse (324444123), we get a palindrome (645888546).

The spelling of 321444423 in words is "three hundred twenty-one million, four hundred forty-four thousand, four hundred twenty-three".