4222400405 has 4 divisors (see below), whose sum is σ = 5066880492. Its totient is φ = 3377920320.

The previous prime is 4222400393. The next prime is 4222400407. The reversal of 4222400405 is 5040042224.

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 3080028004 + 1142372401 = 55498^2 + 33799^2 .

It is not a de Polignac number, because 4222400405 - 2⁶ = 4222400341 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 (4222400407) 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, 422240036 + ... + 422240045.

It is an arithmetic number, because the mean of its divisors is an integer number (1266720123).

Almost surely, 2^4222400405 is an apocalyptic number.

It is an amenable number.

4222400405 is a deficient number, since it is larger than the sum of its proper divisors (844480087).

4222400405 is an equidigital number, since it uses as much as digits as its factorization.

4222400405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844480086.

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 4222400405 is about 64980.0000384734. Note that the first 4 decimals coincide. The cubic root of 4222400405 is about 1616.2919311182.

Adding to 4222400405 its reverse (5040042224), we get a palindrome (9262442629).

The spelling of 4222400405 in words is "four billion, two hundred twenty-two million, four hundred thousand, four hundred five".