2322440 has 16 divisors (see below), whose sum is σ = 5225580. Its totient is φ = 928960.

The previous prime is 2322431. The next prime is 2322443. The reversal of 2322440 is 442232.

It can be written as a sum of positive squares in 2 ways, for example, as 2208196 + 114244 = 1486^2 + 338^2 .

It is not an unprimeable number, because it can be changed into a prime (2322443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28991 + ... + 29070.

2^2322440 is an apocalyptic number.

2322440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2322440 is an abundant number, since it is smaller than the sum of its proper divisors (2903140).

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

2322440 is a wasteful number, since it uses less digits than its factorization.

2322440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58072 (or 58068 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 2322440 is about 1523.9553799242. The cubic root of 2322440 is about 132.4285125232.

Adding to 2322440 its reverse (442232), we get a palindrome (2764672).

The spelling of 2322440 in words is "two million, three hundred twenty-two thousand, four hundred forty".