2252440 has 16 divisors (see below), whose sum is σ = 5068080. Its totient is φ = 900960.

The previous prime is 2252407. The next prime is 2252441. The reversal of 2252440 is 442522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2252441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28116 + ... + 28195.

It is an arithmetic number, because the mean of its divisors is an integer number (316755).

2^2252440 is an apocalyptic number.

2252440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2252440 is an abundant number, since it is smaller than the sum of its proper divisors (2815640).

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

2252440 is a wasteful number, since it uses less digits than its factorization.

2252440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56322 (or 56318 counting only the distinct ones).

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

The square root of 2252440 is about 1500.8131129491. The cubic root of 2252440 is about 131.0844200724.

Adding to 2252440 its reverse (442522), we get a palindrome (2694962).

The spelling of 2252440 in words is "two million, two hundred fifty-two thousand, four hundred forty".