2440245 has 8 divisors (see below), whose sum is σ = 3904416. Its totient is φ = 1301456.

The previous prime is 2440241. The next prime is 2440247. The reversal of 2440245 is 5420442.

2440245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2440245 - 2² = 2440241 is a prime.

It is a d-powerful number, because it can be written as 2¹³ + 4⁶ + 4⁸ + 0 + 2²¹ + 4⁹ + 5⁵ .

2440245 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2440241) 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, 81327 + ... + 81356.

It is an arithmetic number, because the mean of its divisors is an integer number (488052).

2^2440245 is an apocalyptic number.

It is an amenable number.

2440245 is a deficient number, since it is larger than the sum of its proper divisors (1464171).

2440245 is a wasteful number, since it uses less digits than its factorization.

2440245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162691.

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 2440245 is about 1562.1283558018. The cubic root of 2440245 is about 134.6308157297.

Adding to 2440245 its reverse (5420442), we get a palindrome (7860687).

The spelling of 2440245 in words is "two million, four hundred forty thousand, two hundred forty-five".