3122320 has 40 divisors (see below), whose sum is σ = 7499520. Its totient is φ = 1207680.

The previous prime is 3122309. The next prime is 3122321. The reversal of 3122320 is 232213.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 3122320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3122321) 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, 1851 + ... + 3109.

It is an arithmetic number, because the mean of its divisors is an integer number (187488).

Almost surely, 2^3122320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3122320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3749760).

3122320 is an abundant number, since it is smaller than the sum of its proper divisors (4377200).

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

3122320 is a wasteful number, since it uses less digits than its factorization.

3122320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303 (or 1297 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 3122320 is about 1767.0087719081. The cubic root of 3122320 is about 146.1590809972.

Adding to 3122320 its reverse (232213), we get a palindrome (3354533).

The spelling of 3122320 in words is "three million, one hundred twenty-two thousand, three hundred twenty".