2756736 has 48 divisors (see below), whose sum is σ = 7936110. Its totient is φ = 918528.

The previous prime is 2756731. The next prime is 2756749. The reversal of 2756736 is 6376572.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2742336 + 14400 = 1656^2 + 120^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2756736.

It is not an unprimeable number, because it can be changed into a prime (2756731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45 + ... + 2348.

2^2756736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2756736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3968055).

2756736 is an abundant number, since it is smaller than the sum of its proper divisors (5179374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2756736 is a wasteful number, since it uses less digits than its factorization.

2756736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2413 (or 2398 counting only the distinct ones).

The product of its digits is 52920, while the sum is 36.

The square root of 2756736 is about 1660.3421334171. The cubic root of 2756736 is about 140.2162643939.

The spelling of 2756736 in words is "two million, seven hundred fifty-six thousand, seven hundred thirty-six".