22800005 has 4 divisors (see below), whose sum is σ = 27360012. Its totient is φ = 18240000.

The previous prime is 22799999. The next prime is 22800013. The reversal of 22800005 is 50000822.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50000822 = 2 ⋅25000411.

It can be written as a sum of positive squares in 2 ways, for example, as 7134241 + 15665764 = 2671^2 + 3958^2 .

It is not a de Polignac number, because 22800005 - 2⁴ = 22799989 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, 2279996 + ... + 2280005.

It is an arithmetic number, because the mean of its divisors is an integer number (6840003).

Almost surely, 2^22800005 is an apocalyptic number.

It is an amenable number.

22800005 is a deficient number, since it is larger than the sum of its proper divisors (4560007).

22800005 is an equidigital number, since it uses as much as digits as its factorization.

22800005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4560006.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 22800005 is about 4774.9350780927. The cubic root of 22800005 is about 283.5600085316.

Adding to 22800005 its reverse (50000822), we get a palindrome (72800827).

The spelling of 22800005 in words is "twenty-two million, eight hundred thousand, five".