2732261 has 4 divisors (see below), whose sum is σ = 3122592. Its totient is φ = 2341932.

The previous prime is 2732243. The next prime is 2732269. The reversal of 2732261 is 1622372.

2732261 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2732261 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2732269) by changing a digit.

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, 195155 + ... + 195168.

It is an arithmetic number, because the mean of its divisors is an integer number (780648).

2^2732261 is an apocalyptic number.

It is an amenable number.

2732261 is a deficient number, since it is larger than the sum of its proper divisors (390331).

2732261 is an equidigital number, since it uses as much as digits as its factorization.

2732261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390330.

The product of its digits is 1008, while the sum is 23.

The square root of 2732261 is about 1652.9552323036. The cubic root of 2732261 is about 139.8000717695.

The spelling of 2732261 in words is "two million, seven hundred thirty-two thousand, two hundred sixty-one".