22002293 has 2 divisors, whose sum is σ = 22002294. Its totient is φ = 22002292.

The previous prime is 22002289. The next prime is 22002311. The reversal of 22002293 is 39220022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19864849 + 2137444 = 4457^2 + 1462^2 .

It is a cyclic number.

It is not a de Polignac number, because 22002293 - 2² = 22002289 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22002203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11001146 + 11001147.

It is an arithmetic number, because the mean of its divisors is an integer number (11001147).

Almost surely, 2^22002293 is an apocalyptic number.

It is an amenable number.

22002293 is a deficient number, since it is larger than the sum of its proper divisors (1).

22002293 is an equidigital number, since it uses as much as digits as its factorization.

22002293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 22002293 is about 4690.6601880759. The cubic root of 22002293 is about 280.2136676913.

The spelling of 22002293 in words is "twenty-two million, two thousand, two hundred ninety-three".