2217941 has 8 divisors (see below), whose sum is σ = 2436384. Its totient is φ = 2002320.

The previous prime is 2217911. The next prime is 2217947. The reversal of 2217941 is 1497122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2217941 - 2¹⁰ = 2216917 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2217941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2217947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1175 + ... + 2411.

It is an arithmetic number, because the mean of its divisors is an integer number (304548).

2^2217941 is an apocalyptic number.

It is an amenable number.

2217941 is a deficient number, since it is larger than the sum of its proper divisors (218443).

2217941 is a wasteful number, since it uses less digits than its factorization.

2217941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411.

The product of its digits is 1008, while the sum is 26.

The square root of 2217941 is about 1489.2753271306. The cubic root of 2217941 is about 130.4117320733.

The spelling of 2217941 in words is "two million, two hundred seventeen thousand, nine hundred forty-one".