2228319 has 6 divisors (see below), whose sum is σ = 3218696. Its totient is φ = 1485540.

The previous prime is 2228299. The next prime is 2228321. The reversal of 2228319 is 9138222.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-2228319 is a prime.

It is a super-2 number, since 2×2228319² = 9930811131522, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2² + 2¹⁶ + 2¹⁶ + 8⁷ + 3⁴ + 1 + 9 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2228292 and 2228301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2228329) 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, 123787 + ... + 123804.

2^2228319 is an apocalyptic number.

2228319 is a deficient number, since it is larger than the sum of its proper divisors (990377).

2228319 is a wasteful number, since it uses less digits than its factorization.

2228319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247597 (or 247594 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 2228319 is about 1492.7555057678. The cubic root of 2228319 is about 130.6148194564.

Subtracting 2228319 from its reverse (9138222), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 2228319 in words is "two million, two hundred twenty-eight thousand, three hundred nineteen".