22004259 has 4 divisors (see below), whose sum is σ = 29339016. Its totient is φ = 14669504.

The previous prime is 22004251. The next prime is 22004263. The reversal of 22004259 is 95240022.

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 22004259 - 2³ = 22004251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22004251) 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, 3667374 + ... + 3667379.

It is an arithmetic number, because the mean of its divisors is an integer number (7334754).

Almost surely, 2^22004259 is an apocalyptic number.

22004259 is a deficient number, since it is larger than the sum of its proper divisors (7334757).

22004259 is an equidigital number, since it uses as much as digits as its factorization.

22004259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7334756.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 22004259 is about 4690.8697487779. The cubic root of 22004259 is about 280.2220135436. Note that the first 3 decimals are identical.

The spelling of 22004259 in words is "twenty-two million, four thousand, two hundred fifty-nine".