2443245 has 16 divisors (see below), whose sum is σ = 4467840. Its totient is φ = 1116864.

The previous prime is 2443241. The next prime is 2443277. The reversal of 2443245 is 5423442.

It is not a de Polignac number, because 2443245 - 2² = 2443241 is a prime.

It is a super-2 number, since 2×2443245² = 11938892260050, which contains 22 as substring.

It is a Curzon number.

2443245 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2443241) 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 15 ways as a sum of consecutive naturals, for example, 11530 + ... + 11739.

It is an arithmetic number, because the mean of its divisors is an integer number (279240).

2^2443245 is an apocalyptic number.

It is an amenable number.

2443245 is a deficient number, since it is larger than the sum of its proper divisors (2024595).

2443245 is a wasteful number, since it uses less digits than its factorization.

2443245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23284.

The product of its digits is 3840, while the sum is 24.

The square root of 2443245 is about 1563.0882892530. The cubic root of 2443245 is about 134.6859641605.

Adding to 2443245 its reverse (5423442), we get a palindrome (7866687).

The spelling of 2443245 in words is "two million, four hundred forty-three thousand, two hundred forty-five".