2265440 has 24 divisors (see below), whose sum is σ = 5352480. Its totient is φ = 906112.

The previous prime is 2265433. The next prime is 2265443. The reversal of 2265440 is 445622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2265443) 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, 6920 + ... + 7239.

It is an arithmetic number, because the mean of its divisors is an integer number (223020).

2^2265440 is an apocalyptic number.

2265440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2265440 is an abundant number, since it is smaller than the sum of its proper divisors (3087040).

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

2265440 is a wasteful number, since it uses less digits than its factorization.

2265440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14174 (or 14166 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 2265440 is about 1505.1378674394. The cubic root of 2265440 is about 131.3361218598.

The spelling of 2265440 in words is "two million, two hundred sixty-five thousand, four hundred forty".