2730261 has 8 divisors (see below), whose sum is σ = 3798720. Its totient is φ = 1740992.

The previous prime is 2730257. The next prime is 2730271. The reversal of 2730261 is 1620372.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2730261 - 2² = 2730257 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2730241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19716 + ... + 19853.

It is an arithmetic number, because the mean of its divisors is an integer number (474840).

2^2730261 is an apocalyptic number.

It is an amenable number.

2730261 is a deficient number, since it is larger than the sum of its proper divisors (1068459).

2730261 is a wasteful number, since it uses less digits than its factorization.

2730261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39595.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 2730261 is about 1652.3501444912. The cubic root of 2730261 is about 139.7659524823.

The spelling of 2730261 in words is "two million, seven hundred thirty thousand, two hundred sixty-one".