2271748 has 6 divisors (see below), whose sum is σ = 3975566. Its totient is φ = 1135872.

The previous prime is 2271743. The next prime is 2271749. The reversal of 2271748 is 8471722.

It can be written as a sum of positive squares in only one way, i.e., 1937664 + 334084 = 1392^2 + 578^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2271743) by changing a digit.

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 as a sum of consecutive naturals, namely, 283965 + ... + 283972.

2^2271748 is an apocalyptic number.

It is an amenable number.

2271748 is a deficient number, since it is larger than the sum of its proper divisors (1703818).

2271748 is a wasteful number, since it uses less digits than its factorization.

2271748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567941 (or 567939 counting only the distinct ones).

The product of its digits is 6272, while the sum is 31.

The square root of 2271748 is about 1507.2318998747. The cubic root of 2271748 is about 131.4579084299.

The spelling of 2271748 in words is "two million, two hundred seventy-one thousand, seven hundred forty-eight".