2522440 has 32 divisors (see below), whose sum is σ = 5976000. Its totient is φ = 955584.

The previous prime is 2522431. The next prime is 2522441. The reversal of 2522440 is 442252.

2522440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2522441) 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, 900 + ... + 2419.

It is an arithmetic number, because the mean of its divisors is an integer number (186750).

2^2522440 is an apocalyptic number.

2522440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2522440 is an abundant number, since it is smaller than the sum of its proper divisors (3453560).

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

2522440 is a wasteful number, since it uses less digits than its factorization.

2522440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3349 (or 3345 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 2522440 is about 1588.2191284580. The cubic root of 2522440 is about 136.1257487459.

Adding to 2522440 its reverse (442252), we get a palindrome (2964692).

The spelling of 2522440 in words is "two million, five hundred twenty-two thousand, four hundred forty".