2442405 has 24 divisors (see below), whose sum is σ = 4547232. Its totient is φ = 1116192.

The previous prime is 2442403. The next prime is 2442413. The reversal of 2442405 is 5042442.

It is not a de Polignac number, because 2442405 - 2¹ = 2442403 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2442403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 927 + ... + 2396.

It is an arithmetic number, because the mean of its divisors is an integer number (189468).

2^2442405 is an apocalyptic number.

It is an amenable number.

2442405 is a deficient number, since it is larger than the sum of its proper divisors (2104827).

2442405 is a wasteful number, since it uses less digits than its factorization.

2442405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3345 (or 3338 counting only the distinct ones).

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

The square root of 2442405 is about 1562.8195673206. The cubic root of 2442405 is about 134.6705271525.

Adding to 2442405 its reverse (5042442), we get a palindrome (7484847).

The spelling of 2442405 in words is "two million, four hundred forty-two thousand, four hundred five".