2742289 has 8 divisors (see below), whose sum is σ = 3149280. Its totient is φ = 2361600.

The previous prime is 2742283. The next prime is 2742293. The reversal of 2742289 is 9822472.

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 2742289 - 2⁷ = 2742161 is a prime.

It is a Duffinian number.

2742289 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2742283) 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, 6352 + ... + 6769.

It is an arithmetic number, because the mean of its divisors is an integer number (393660).

2^2742289 is an apocalyptic number.

It is an amenable number.

2742289 is a deficient number, since it is larger than the sum of its proper divisors (406991).

2742289 is a wasteful number, since it uses less digits than its factorization.

2742289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13151.

The product of its digits is 16128, while the sum is 34.

The square root of 2742289 is about 1655.9858091179. The cubic root of 2742289 is about 139.9708953104.

The spelling of 2742289 in words is "two million, seven hundred forty-two thousand, two hundred eighty-nine".