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2748 = 223229

2748 has 12 divisors (see below), whose sum is σ = 6440. Its totient is φ = 912.

The previous prime is 2741. The next prime is 2749. The reversal of 2748 is 8472.

It is a happy number.

2748 is an esthetic number in base 16, because in such base its adjacent digits differ by 1.

It is a tau number, because it is divible by the number of its divisors (12).

It is an Ulam number.

It is a plaindrome in base 13 and base 16.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2741) by changing a digit.

2748 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103 + ... + 126.

22748 is an apocalyptic number.

It is an amenable number.

2748 is an abundant number, since it is smaller than the sum of its proper divisors (3692).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3220).

2748 is a wasteful number, since it uses less digits than its factorization.

2748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236 (or 234 counting only the distinct ones).

The product of its digits is 448, while the sum is 21.

The square root of 2748 is about 52.4213696883. The cubic root of 2748 is about 14.0067994183.

It can be divided in two parts, 274 and 8, that added together give a palindrome (282).

The spelling of 2748 in words is "two thousand, seven hundred forty-eight".

Divisors: 1 2 3 4 6 12 229 458 687 916 1374 2748