2298281 has 4 divisors (see below), whose sum is σ = 2433492. Its totient is φ = 2163072.

The previous prime is 2298223. The next prime is 2298293. The reversal of 2298281 is 1828922.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1828922 = 2 ⋅914461.

It can be written as a sum of positive squares in 2 ways, for example, as 1795600 + 502681 = 1340^2 + 709^2 .

It is a cyclic number.

It is not a de Polignac number, because 2298281 - 2¹⁰ = 2297257 is a prime.

It is a super-2 number, since 2×2298281² = 10564191109922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2298211) 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, 67580 + ... + 67613.

It is an arithmetic number, because the mean of its divisors is an integer number (608373).

2^2298281 is an apocalyptic number.

It is an amenable number.

2298281 is a deficient number, since it is larger than the sum of its proper divisors (135211).

2298281 is a wasteful number, since it uses less digits than its factorization.

2298281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135210.

The product of its digits is 4608, while the sum is 32.

The square root of 2298281 is about 1516.0082453602. The cubic root of 2298281 is about 131.9677186135.

The spelling of 2298281 in words is "two million, two hundred ninety-eight thousand, two hundred eighty-one".