22678235 has 4 divisors (see below), whose sum is σ = 27213888. Its totient is φ = 18142584.

The previous prime is 22678219. The next prime is 22678241. The reversal of 22678235 is 53287622.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22678235 - 2⁴ = 22678219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22678195 and 22678204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2267819 + ... + 2267828.

It is an arithmetic number, because the mean of its divisors is an integer number (6803472).

Almost surely, 2^22678235 is an apocalyptic number.

22678235 is a deficient number, since it is larger than the sum of its proper divisors (4535653).

22678235 is an equidigital number, since it uses as much as digits as its factorization.

22678235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4535652.

The product of its digits is 40320, while the sum is 35.

The square root of 22678235 is about 4762.1670487290. The cubic root of 22678235 is about 283.0542958332.

The spelling of 22678235 in words is "twenty-two million, six hundred seventy-eight thousand, two hundred thirty-five".