22038217 has 4 divisors (see below), whose sum is σ = 22047696. Its totient is φ = 22028740.

The previous prime is 22038167. The next prime is 22038227. The reversal of 22038217 is 71283022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22038217 - 2¹⁵ = 22005449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22038191 and 22038200.

It is not an unprimeable number, because it can be changed into a prime (22038227) 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, 1398 + ... + 6784.

It is an arithmetic number, because the mean of its divisors is an integer number (5511924).

Almost surely, 2^22038217 is an apocalyptic number.

It is an amenable number.

22038217 is a deficient number, since it is larger than the sum of its proper divisors (9479).

22038217 is an equidigital number, since it uses as much as digits as its factorization.

22038217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9478.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 22038217 is about 4694.4879379971. The cubic root of 22038217 is about 280.3660900193.

The spelling of 22038217 in words is "twenty-two million, thirty-eight thousand, two hundred seventeen".