2522320 has 40 divisors (see below), whose sum is σ = 6015240. Its totient is φ = 983040.

The previous prime is 2522297. The next prime is 2522329. The reversal of 2522320 is 232252.

2522320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 576 + 2521744 = 24^2 + 1588^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 2522294 and 2522303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2522329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2896 + ... + 3664.

It is an arithmetic number, because the mean of its divisors is an integer number (150381).

2^2522320 is an apocalyptic number.

2522320 is a gapful number since it is divisible by the number (20) 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 2522320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3007620).

2522320 is an abundant number, since it is smaller than the sum of its proper divisors (3492920).

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

2522320 is a wasteful number, since it uses less digits than its factorization.

2522320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823 (or 817 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 2522320 is about 1588.1813498464. The cubic root of 2522320 is about 136.1235900756.

Adding to 2522320 its reverse (232252), we get a palindrome (2754572).

The spelling of 2522320 in words is "two million, five hundred twenty-two thousand, three hundred twenty".