2228809 has 8 divisors (see below), whose sum is σ = 2477952. Its totient is φ = 1987440.

The previous prime is 2228797. The next prime is 2228813. The reversal of 2228809 is 9088222.

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 2228809 - 2⁵ = 2228777 is a prime.

It is a d-powerful number, because it can be written as 2¹⁷ + 2²⁰ + 2²⁰ + 8² + 8³ + 0 + 9 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2228209) 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, 1329 + ... + 2494.

It is an arithmetic number, because the mean of its divisors is an integer number (309744).

2^2228809 is an apocalyptic number.

It is an amenable number.

2228809 is a deficient number, since it is larger than the sum of its proper divisors (249143).

2228809 is a wasteful number, since it uses less digits than its factorization.

2228809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3887.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 2228809 is about 1492.9196227527. The cubic root of 2228809 is about 130.6243926774.

The spelling of 2228809 in words is "two million, two hundred twenty-eight thousand, eight hundred nine".