2740491 has 24 divisors (see below), whose sum is σ = 4346160. Its totient is φ = 1653696.

The previous prime is 2740489. The next prime is 2740511. The reversal of 2740491 is 1940472.

It is a happy number.

It is not a de Polignac number, because 2740491 - 2¹ = 2740489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2740421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6705 + ... + 7101.

It is an arithmetic number, because the mean of its divisors is an integer number (181090).

2^2740491 is an apocalyptic number.

2740491 is a deficient number, since it is larger than the sum of its proper divisors (1605669).

2740491 is a wasteful number, since it uses less digits than its factorization.

2740491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475 (or 472 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 2740491 is about 1655.4428410549. The cubic root of 2740491 is about 139.9402976731.

It can be divided in two parts, 27404 and 91, that added together give a triangular number (27495 = T₂₃₄).

The spelling of 2740491 in words is "two million, seven hundred forty thousand, four hundred ninety-one".