2552240 has 40 divisors (see below), whose sum is σ = 6042768. Its totient is φ = 1002240.

The previous prime is 2552239. The next prime is 2552279. The reversal of 2552240 is 422552.

2552240 is digitally balanced in base 2, 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 (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

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, 4619 + ... + 5141.

2^2552240 is an apocalyptic number.

2552240 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 2552240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3021384).

2552240 is an abundant number, since it is smaller than the sum of its proper divisors (3490528).

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

2552240 is a wasteful number, since it uses less digits than its factorization.

2552240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597 (or 591 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 2552240 is about 1597.5731595141. The cubic root of 2552240 is about 136.6597127799.

Adding to 2552240 its reverse (422552), we get a palindrome (2974792).

The spelling of 2552240 in words is "two million, five hundred fifty-two thousand, two hundred forty".