2443405 has 8 divisors (see below), whose sum is σ = 3059712. Its totient is φ = 1869648.

The previous prime is 2443403. The next prime is 2443409. The reversal of 2443405 is 5043442.

It is a happy number.

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 2443405 - 2¹ = 2443403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2443403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10509 + ... + 10738.

It is an arithmetic number, because the mean of its divisors is an integer number (382464).

2^2443405 is an apocalyptic number.

It is an amenable number.

2443405 is a deficient number, since it is larger than the sum of its proper divisors (616307).

2443405 is a wasteful number, since it uses less digits than its factorization.

2443405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21275.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 2443405 is about 1563.1394691453. The cubic root of 2443405 is about 134.6889041418.

Adding to 2443405 its reverse (5043442), we get a palindrome (7486847).

The spelling of 2443405 in words is "two million, four hundred forty-three thousand, four hundred five".