322643040 has 96 divisors (see below), whose sum is σ = 1049158656. Its totient is φ = 83258880.

The previous prime is 322643039. The next prime is 322643077. The reversal of 322643040 is 40346223.

It is a happy number.

322643040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 322643040.

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, 4039 + ... + 25721.

It is an arithmetic number, because the mean of its divisors is an integer number (10928736).

Almost surely, 2^322643040 is an apocalyptic number.

322643040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 322643040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (524579328).

322643040 is an abundant number, since it is smaller than the sum of its proper divisors (726515616).

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

322643040 is a wasteful number, since it uses less digits than its factorization.

322643040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21732 (or 21724 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 322643040 is about 17962.2671174883. The cubic root of 322643040 is about 685.8683572445.

Adding to 322643040 its reverse (40346223), we get a palindrome (362989263).

The spelling of 322643040 in words is "three hundred twenty-two million, six hundred forty-three thousand, forty".