2749646 has 8 divisors (see below), whose sum is σ = 4152600. Its totient is φ = 1365448.

The previous prime is 2749639. The next prime is 2749667. The reversal of 2749646 is 6469472.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4316 + ... + 4911.

It is an arithmetic number, because the mean of its divisors is an integer number (519075).

2^2749646 is an apocalyptic number.

2749646 is a deficient number, since it is larger than the sum of its proper divisors (1402954).

2749646 is a wasteful number, since it uses less digits than its factorization.

2749646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9378.

The product of its digits is 72576, while the sum is 38.

The square root of 2749646 is about 1658.2056567266. The cubic root of 2749646 is about 140.0959546268.

The spelling of 2749646 in words is "two million, seven hundred forty-nine thousand, six hundred forty-six".