2281768 has 8 divisors (see below), whose sum is σ = 4278330. Its totient is φ = 1140880.

The previous prime is 2281751. The next prime is 2281771. The reversal of 2281768 is 8671822.

It can be written as a sum of positive squares in only one way, i.e., 1737124 + 544644 = 1318^2 + 738^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142603 + ... + 142618.

2^2281768 is an apocalyptic number.

It is an amenable number.

2281768 is a deficient number, since it is larger than the sum of its proper divisors (1996562).

2281768 is a wasteful number, since it uses less digits than its factorization.

2281768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285227 (or 285223 counting only the distinct ones).

The product of its digits is 10752, while the sum is 34.

The square root of 2281768 is about 1510.5522169061. The cubic root of 2281768 is about 131.6508987865.

The spelling of 2281768 in words is "two million, two hundred eighty-one thousand, seven hundred sixty-eight".