2243279 has 4 divisors (see below), whose sum is σ = 2246640. Its totient is φ = 2239920.

The previous prime is 2243261. The next prime is 2243281. The reversal of 2243279 is 9723422.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2243279 is a prime.

It is a d-powerful number, because it can be written as 2 + 2⁵ + 4⁸ + 3¹³ + 2¹⁹ + 7² + 9⁵ .

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302 + ... + 2139.

It is an arithmetic number, because the mean of its divisors is an integer number (561660).

2^2243279 is an apocalyptic number.

2243279 is a deficient number, since it is larger than the sum of its proper divisors (3361).

2243279 is an equidigital number, since it uses as much as digits as its factorization.

2243279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3360.

The product of its digits is 6048, while the sum is 29.

The square root of 2243279 is about 1497.7579911321. The cubic root of 2243279 is about 130.9064654852.

The spelling of 2243279 in words is "two million, two hundred forty-three thousand, two hundred seventy-nine".