2270045 has 4 divisors (see below), whose sum is σ = 2724060. Its totient is φ = 1816032.

The previous prime is 2270011. The next prime is 2270071. The reversal of 2270045 is 5400722.

2270045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 458329 + 1811716 = 677^2 + 1346^2 .

It is a cyclic number.

It is not a de Polignac number, because 2270045 - 2²⁰ = 1221469 is a prime.

It is a super-3 number, since 3×2270045³ = 35093335965871023375, which contains 333 as substring.

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2269999 and 2270026.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227000 + ... + 227009.

It is an arithmetic number, because the mean of its divisors is an integer number (681015).

2^2270045 is an apocalyptic number.

It is an amenable number.

2270045 is a deficient number, since it is larger than the sum of its proper divisors (454015).

2270045 is an equidigital number, since it uses as much as digits as its factorization.

2270045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454014.

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 2270045 is about 1506.6668510324. Note that the first 3 decimals coincide. The cubic root of 2270045 is about 131.4250513843.

Adding to 2270045 its reverse (5400722), we get a palindrome (7670767).

The spelling of 2270045 in words is "two million, two hundred seventy thousand, forty-five".