24402005 has 4 divisors (see below), whose sum is σ = 29282412. Its totient is φ = 19521600.

The previous prime is 24401989. The next prime is 24402017. The reversal of 24402005 is 50020442.

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 17631601 + 6770404 = 4199^2 + 2602^2 .

It is not a de Polignac number, because 24402005 - 2⁴ = 24401989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2440196 + ... + 2440205.

It is an arithmetic number, because the mean of its divisors is an integer number (7320603).

Almost surely, 2^24402005 is an apocalyptic number.

It is an amenable number.

24402005 is a deficient number, since it is larger than the sum of its proper divisors (4880407).

24402005 is an equidigital number, since it uses as much as digits as its factorization.

24402005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4880406.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 24402005 is about 4939.8385601151. The cubic root of 24402005 is about 290.0515366196.

Adding to 24402005 its reverse (50020442), we get a palindrome (74422447).

The spelling of 24402005 in words is "twenty-four million, four hundred two thousand, five".