2271389 has 8 divisors (see below), whose sum is σ = 2351712. Its totient is φ = 2192400.

The previous prime is 2271383. The next prime is 2271391. The reversal of 2271389 is 9831722.

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 2271389 - 2⁸ = 2271133 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2271383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4082 + ... + 4604.

It is an arithmetic number, because the mean of its divisors is an integer number (293964).

2^2271389 is an apocalyptic number.

It is an amenable number.

2271389 is a deficient number, since it is larger than the sum of its proper divisors (80323).

2271389 is a wasteful number, since it uses less digits than its factorization.

2271389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667.

The product of its digits is 6048, while the sum is 32.

The square root of 2271389 is about 1507.1128026793. The cubic root of 2271389 is about 131.4509833843.

The spelling of 2271389 in words is "two million, two hundred seventy-one thousand, three hundred eighty-nine".