2742091 has 8 divisors (see below), whose sum is σ = 3034368. Its totient is φ = 2457000.

The previous prime is 2742073. The next prime is 2742119. The reversal of 2742091 is 1902472.

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 2742091 - 2⁹ = 2741579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2742031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 975 + ... + 2536.

It is an arithmetic number, because the mean of its divisors is an integer number (379296).

2^2742091 is an apocalyptic number.

2742091 is a deficient number, since it is larger than the sum of its proper divisors (292277).

2742091 is a wasteful number, since it uses less digits than its factorization.

2742091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3593.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 2742091 is about 1655.9260249178. The cubic root of 2742091 is about 139.9675264818.

The spelling of 2742091 in words is "two million, seven hundred forty-two thousand, ninety-one".