321340044 has 24 divisors (see below), whose sum is σ = 751963968. Its totient is φ = 106803280.

The previous prime is 321340043. The next prime is 321340049. The reversal of 321340044 is 440043123.

321340044 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

321340044 is strictly pandigital in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 321340044.

It is not an unprimeable number, because it can be changed into a prime (321340043) 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, 34422 + ... + 42749.

It is an arithmetic number, because the mean of its divisors is an integer number (31331832).

Almost surely, 2^321340044 is an apocalyptic number.

It is an amenable number.

321340044 is an abundant number, since it is smaller than the sum of its proper divisors (430623924).

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

321340044 is a wasteful number, since it uses less digits than its factorization.

321340044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77525 (or 77523 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 321340044 is about 17925.9600579718. The cubic root of 321340044 is about 684.9438169418.

Adding to 321340044 its reverse (440043123), we get a palindrome (761383167).

The spelling of 321340044 in words is "three hundred twenty-one million, three hundred forty thousand, forty-four".