2270018 has 4 divisors (see below), whose sum is σ = 3405030. Its totient is φ = 1135008.

The previous prime is 2270011. The next prime is 2270071. The reversal of 2270018 is 8100722.

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

It can be written as a sum of positive squares in only one way, i.e., 1194649 + 1075369 = 1093^2 + 1037^2 .

It is not an unprimeable number, because it can be changed into a prime (2270011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 567503 + ... + 567506.

2^2270018 is an apocalyptic number.

2270018 is a deficient number, since it is larger than the sum of its proper divisors (1135012).

2270018 is a wasteful number, since it uses less digits than its factorization.

2270018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135011.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 2270018 is about 1506.6578908299. The cubic root of 2270018 is about 131.4245303240.

The spelling of 2270018 in words is "two million, two hundred seventy thousand, eighteen".