4420120405 has 32 divisors (see below), whose sum is σ = 5699289600. Its totient is φ = 3284585472.

The previous prime is 4420120403. The next prime is 4420120409. The reversal of 4420120405 is 5040210244.

It is a happy number.

It is not a de Polignac number, because 4420120405 - 2¹ = 4420120403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4420120403) 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 31 ways as a sum of consecutive naturals, for example, 396589 + ... + 407581.

It is an arithmetic number, because the mean of its divisors is an integer number (178102800).

Almost surely, 2^4420120405 is an apocalyptic number.

It is an amenable number.

4420120405 is a deficient number, since it is larger than the sum of its proper divisors (1279169195).

4420120405 is a wasteful number, since it uses less digits than its factorization.

4420120405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11133.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 4420120405 is about 66483.9860793560. The cubic root of 4420120405 is about 1641.1364823640.

Adding to 4420120405 its reverse (5040210244), we get a palindrome (9460330649).

The spelling of 4420120405 in words is "four billion, four hundred twenty million, one hundred twenty thousand, four hundred five".