24420205 has 4 divisors (see below), whose sum is σ = 29304252. Its totient is φ = 19536160.

The previous prime is 24420203. The next prime is 24420239. The reversal of 24420205 is 50202442.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50202442 = 2 ⋅25101221.

It can be written as a sum of positive squares in 2 ways, for example, as 8404201 + 16016004 = 2899^2 + 4002^2 .

It is not a de Polignac number, because 24420205 - 2¹ = 24420203 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 (24420203) 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, 2442016 + ... + 2442025.

It is an arithmetic number, because the mean of its divisors is an integer number (7326063).

Almost surely, 2^24420205 is an apocalyptic number.

It is an amenable number.

24420205 is a deficient number, since it is larger than the sum of its proper divisors (4884047).

24420205 is an equidigital number, since it uses as much as digits as its factorization.

24420205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4884046.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 24420205 is about 4941.6803822182. The cubic root of 24420205 is about 290.1236294127.

Adding to 24420205 its reverse (50202442), we get a palindrome (74622647).

It can be divided in two parts, 244 and 20205, that added together give a square (20449 = 143²).

The spelling of 24420205 in words is "twenty-four million, four hundred twenty thousand, two hundred five".