23042219 has 4 divisors (see below), whose sum is σ = 23130096. Its totient is φ = 22954344.

The previous prime is 23042213. The next prime is 23042221. The reversal of 23042219 is 91224032.

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 23042219 - 2¹² = 23038123 is a prime.

It is a super-2 number, since 2×23042219² = 1061887712887922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23042194 and 23042203.

It is not an unprimeable number, because it can be changed into a prime (23042213) 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, 43544 + ... + 44069.

It is an arithmetic number, because the mean of its divisors is an integer number (5782524).

Almost surely, 2^23042219 is an apocalyptic number.

23042219 is a deficient number, since it is larger than the sum of its proper divisors (87877).

23042219 is an equidigital number, since it uses as much as digits as its factorization.

23042219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87876.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 23042219 is about 4800.2311402681. The cubic root of 23042219 is about 284.5605991889.

The spelling of 23042219 in words is "twenty-three million, forty-two thousand, two hundred nineteen".