22128835 has 8 divisors (see below), whose sum is σ = 27005040. Its totient is φ = 17402784.

The previous prime is 22128811. The next prime is 22128839. The reversal of 22128835 is 53882122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22128835 - 2⁵ = 22128803 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22128797 and 22128806.

It is not an unprimeable number, because it can be changed into a prime (22128839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37212 + ... + 37801.

It is an arithmetic number, because the mean of its divisors is an integer number (3375630).

Almost surely, 2^22128835 is an apocalyptic number.

22128835 is a deficient number, since it is larger than the sum of its proper divisors (4876205).

22128835 is an equidigital number, since it uses as much as digits as its factorization.

22128835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75077.

The product of its digits is 7680, while the sum is 31.

The square root of 22128835 is about 4704.1295687938. The cubic root of 22128835 is about 280.7498396277.

The spelling of 22128835 in words is "twenty-two million, one hundred twenty-eight thousand, eight hundred thirty-five".