2240505 has 12 divisors (see below), whose sum is σ = 3883620. Its totient is φ = 1194912.

The previous prime is 2240489. The next prime is 2240507. The reversal of 2240505 is 5050422.

It can be written as a sum of positive squares in 2 ways, for example, as 622521 + 1617984 = 789^2 + 1272^2 .

It is not a de Polignac number, because 2240505 - 2⁴ = 2240489 is a prime.

2240505 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2240507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24850 + ... + 24939.

It is an arithmetic number, because the mean of its divisors is an integer number (323635).

2^2240505 is an apocalyptic number.

It is an amenable number.

2240505 is a deficient number, since it is larger than the sum of its proper divisors (1643115).

2240505 is a wasteful number, since it uses less digits than its factorization.

2240505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49800 (or 49797 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 2240505 is about 1496.8316538609. The cubic root of 2240505 is about 130.8524843383.

Adding to 2240505 its reverse (5050422), we get a palindrome (7290927).

The spelling of 2240505 in words is "two million, two hundred forty thousand, five hundred five".