2749456 has 20 divisors (see below), whose sum is σ = 5356800. Its totient is φ = 1367072.

The previous prime is 2749447. The next prime is 2749499. The reversal of 2749456 is 6549472.

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

Its product of digits (60480) is a multiple of the sum of its prime divisors (960).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3465 + ... + 4183.

It is an arithmetic number, because the mean of its divisors is an integer number (267840).

2^2749456 is an apocalyptic number.

It is an amenable number.

2749456 is a deficient number, since it is larger than the sum of its proper divisors (2607344).

2749456 is a wasteful number, since it uses less digits than its factorization.

2749456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966 (or 960 counting only the distinct ones).

The product of its digits is 60480, while the sum is 37.

The square root of 2749456 is about 1658.1483648938. The cubic root of 2749456 is about 140.0927276848.

It can be divided in two parts, 274 and 9456, that added together give a triangular number (9730 = T₁₃₉).

The spelling of 2749456 in words is "two million, seven hundred forty-nine thousand, four hundred fifty-six".