2661266 has 4 divisors (see below), whose sum is σ = 3991902. Its totient is φ = 1330632.

The previous prime is 2661251. The next prime is 2661271. The reversal of 2661266 is 6621662.

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., 1974025 + 687241 = 1405^2 + 829^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665315 + ... + 665318.

2^2661266 is an apocalyptic number.

2661266 is a deficient number, since it is larger than the sum of its proper divisors (1330636).

2661266 is a wasteful number, since it uses less digits than its factorization.

2661266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330635.

The product of its digits is 5184, while the sum is 29.

The square root of 2661266 is about 1631.3387140628. The cubic root of 2661266 is about 138.5785762727.

The spelling of 2661266 in words is "two million, six hundred sixty-one thousand, two hundred sixty-six".