2270665 has 8 divisors (see below), whose sum is σ = 2762568. Its totient is φ = 1791360.

The previous prime is 2270663. The next prime is 2270669. The reversal of 2270665 is 5660722.

It can be written as a sum of positive squares in 4 ways, for example, as 8649 + 2262016 = 93^2 + 1504^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2270665 - 2¹ = 2270663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2270663) 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, 2746 + ... + 3475.

It is an arithmetic number, because the mean of its divisors is an integer number (345321).

2^2270665 is an apocalyptic number.

It is an amenable number.

2270665 is a deficient number, since it is larger than the sum of its proper divisors (491903).

2270665 is an equidigital number, since it uses as much as digits as its factorization.

2270665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6299.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 2270665 is about 1506.8725891727. The cubic root of 2270665 is about 131.4370153343.

The spelling of 2270665 in words is "two million, two hundred seventy thousand, six hundred sixty-five".