2721266 has 8 divisors (see below), whose sum is σ = 4118364. Its totient is φ = 1348480.

The previous prime is 2721259. The next prime is 2721307. The reversal of 2721266 is 6621272.

2721266 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2544025 + 177241 = 1595^2 + 421^2 .

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

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, 5795 + ... + 6246.

2^2721266 is an apocalyptic number.

2721266 is a deficient number, since it is larger than the sum of its proper divisors (1397098).

2721266 is a wasteful number, since it uses less digits than its factorization.

2721266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12156.

The product of its digits is 2016, while the sum is 26.

The square root of 2721266 is about 1649.6260182235. The cubic root of 2721266 is about 139.6122946564.

The spelling of 2721266 in words is "two million, seven hundred twenty-one thousand, two hundred sixty-six".