321344432 has 10 divisors (see below), whose sum is σ = 622604868. Its totient is φ = 160672208.

The previous prime is 321344423. The next prime is 321344437. The reversal of 321344432 is 234443123.

It is not an unprimeable number, because it can be changed into a prime (321344437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10041998 + ... + 10042029.

Almost surely, 2^321344432 is an apocalyptic number.

It is an amenable number.

321344432 is a deficient number, since it is larger than the sum of its proper divisors (301260436).

321344432 is a wasteful number, since it uses less digits than its factorization.

321344432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20084035 (or 20084029 counting only the distinct ones).

The product of its digits is 6912, while the sum is 26.

The square root of 321344432 is about 17926.0824498829. The cubic root of 321344432 is about 684.9469346358.

Adding to 321344432 its reverse (234443123), we get a palindrome (555787555).

The spelling of 321344432 in words is "three hundred twenty-one million, three hundred forty-four thousand, four hundred thirty-two".