22004293 has 4 divisors (see below), whose sum is σ = 22014720. Its totient is φ = 21993868.

The previous prime is 22004263. The next prime is 22004303. The reversal of 22004293 is 39240022.

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 22004293 - 2⁹ = 22003781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22004263) 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, 805 + ... + 6682.

It is an arithmetic number, because the mean of its divisors is an integer number (5503680).

Almost surely, 2^22004293 is an apocalyptic number.

It is an amenable number.

22004293 is a deficient number, since it is larger than the sum of its proper divisors (10427).

22004293 is an equidigital number, since it uses as much as digits as its factorization.

22004293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10426.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 22004293 is about 4690.8733728379. The cubic root of 22004293 is about 280.2221578723. Note that the first 3 decimals are identical.

The spelling of 22004293 in words is "twenty-two million, four thousand, two hundred ninety-three".