2749491 has 8 divisors (see below), whose sum is σ = 4073360. Its totient is φ = 1832976.

The previous prime is 2749447. The next prime is 2749499. The reversal of 2749491 is 1949472.

It is not a de Polignac number, because 2749491 - 2⁷ = 2749363 is a prime.

It is a super-3 number, since 3×2749491³ = 62355987599359133313, which contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2749499) 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, 50890 + ... + 50943.

It is an arithmetic number, because the mean of its divisors is an integer number (509170).

2^2749491 is an apocalyptic number.

2749491 is a deficient number, since it is larger than the sum of its proper divisors (1323869).

2749491 is a wasteful number, since it uses less digits than its factorization.

2749491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101842 (or 101836 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 2749491 is about 1658.1589188012. The cubic root of 2749491 is about 140.0933221326.

It can be divided in two parts, 2749 and 491, that added together give a triangular number (3240 = T₈₀).

The spelling of 2749491 in words is "two million, seven hundred forty-nine thousand, four hundred ninety-one".