18834226 has 4 divisors (see below), whose sum is σ = 28251342. Its totient is φ = 9417112.

The previous prime is 18834223. The next prime is 18834331. The reversal of 18834226 is 62243881.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62243881 = 7 ⋅8891983.

It can be written as a sum of positive squares in only one way, i.e., 9828225 + 9006001 = 3135^2 + 3001^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18834191 and 18834200.

It is not an unprimeable number, because it can be changed into a prime (18834223) by changing a digit.

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 as a sum of consecutive naturals, namely, 4708555 + ... + 4708558.

Almost surely, 2^18834226 is an apocalyptic number.

18834226 is a deficient number, since it is larger than the sum of its proper divisors (9417116).

18834226 is an equidigital number, since it uses as much as digits as its factorization.

18834226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9417115.

The product of its digits is 18432, while the sum is 34.

The square root of 18834226 is about 4339.8417021822. The cubic root of 18834226 is about 266.0618413888.

The spelling of 18834226 in words is "eighteen million, eight hundred thirty-four thousand, two hundred twenty-six".