4121244405 has 24 divisors (see below), whose sum is σ = 7145495448. Its totient is φ = 2197380096.

The previous prime is 4121244403. The next prime is 4121244409. The reversal of 4121244405 is 5044421214.

4121244405 is a `hidden beast` number, since 4 + 1 + 212 + 4 + 440 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 9998244 + 4111246161 = 3162^2 + 64119^2 .

It is not a de Polignac number, because 4121244405 - 2¹ = 4121244403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4121244403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 181569 + ... + 203001.

It is an arithmetic number, because the mean of its divisors is an integer number (297728977).

Almost surely, 2^4121244405 is an apocalyptic number.

4121244405 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4121244405 is a deficient number, since it is larger than the sum of its proper divisors (3024251043).

4121244405 is a wasteful number, since it uses less digits than its factorization.

4121244405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25717 (or 25714 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 4121244405 is about 64196.9189681249. The cubic root of 4121244405 is about 1603.2803020665.

Adding to 4121244405 its reverse (5044421214), we get a palindrome (9165665619).

The spelling of 4121244405 in words is "four billion, one hundred twenty-one million, two hundred forty-four thousand, four hundred five".