2442565 has 4 divisors (see below), whose sum is σ = 2931084. Its totient is φ = 1954048.

The previous prime is 2442563. The next prime is 2442571. The reversal of 2442565 is 5652442.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1800964 + 641601 = 1342^2 + 801^2 .

It is a cyclic number.

It is not a de Polignac number, because 2442565 - 2¹ = 2442563 is a prime.

It is a super-2 number, since 2×2442565² = 11932247558450, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2442563) 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, 244252 + ... + 244261.

It is an arithmetic number, because the mean of its divisors is an integer number (732771).

2^2442565 is an apocalyptic number.

It is an amenable number.

2442565 is a deficient number, since it is larger than the sum of its proper divisors (488519).

2442565 is an equidigital number, since it uses as much as digits as its factorization.

2442565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488518.

The product of its digits is 9600, while the sum is 28.

The square root of 2442565 is about 1562.8707560128. The cubic root of 2442565 is about 134.6734678078.

It can be divided in two parts, 244 and 2565, that added together give a square (2809 = 53²).

The spelling of 2442565 in words is "two million, four hundred forty-two thousand, five hundred sixty-five".