2209293 has 6 divisors (see below), whose sum is σ = 3191214. Its totient is φ = 1472856.

The previous prime is 2209289. The next prime is 2209313. The reversal of 2209293 is 3929022.

It can be written as a sum of positive squares in only one way, i.e., 1695204 + 514089 = 1302^2 + 717^2 .

It is not a de Polignac number, because 2209293 - 2² = 2209289 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2209213) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 122730 + ... + 122747.

It is an arithmetic number, because the mean of its divisors is an integer number (531869).

2^2209293 is an apocalyptic number.

It is an amenable number.

2209293 is a deficient number, since it is larger than the sum of its proper divisors (981921).

2209293 is a wasteful number, since it uses less digits than its factorization.

2209293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245483 (or 245480 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 2209293 is about 1486.3690658783. The cubic root of 2209293 is about 130.2420146568.

The spelling of 2209293 in words is "two million, two hundred nine thousand, two hundred ninety-three".