2270305 has 4 divisors (see below), whose sum is σ = 2724372. Its totient is φ = 1816240.

The previous prime is 2270297. The next prime is 2270309. The reversal of 2270305 is 5030722.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 321489 + 1948816 = 567^2 + 1396^2 .

It is not a de Polignac number, because 2270305 - 2³ = 2270297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2270309) 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, 227026 + ... + 227035.

It is an arithmetic number, because the mean of its divisors is an integer number (681093).

2^2270305 is an apocalyptic number.

It is an amenable number.

2270305 is a deficient number, since it is larger than the sum of its proper divisors (454067).

2270305 is an equidigital number, since it uses as much as digits as its factorization.

2270305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454066.

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 2270305 is about 1506.7531317372. The cubic root of 2270305 is about 131.4300687898.

The spelling of 2270305 in words is "two million, two hundred seventy thousand, three hundred five".