2278768 has 20 divisors (see below), whose sum is σ = 4477888. Its totient is φ = 1123200.

The previous prime is 2278753. The next prime is 2278769. The reversal of 2278768 is 8678722.

It is a self number, because there is not a number n which added to its sum of digits gives 2278768.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2278769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193 + ... + 2143.

2^2278768 is an apocalyptic number.

It is an amenable number.

2278768 is a deficient number, since it is larger than the sum of its proper divisors (2199120).

2278768 is a wasteful number, since it uses less digits than its factorization.

2278768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032 (or 2026 counting only the distinct ones).

The product of its digits is 75264, while the sum is 40.

The square root of 2278768 is about 1509.5588759634. The cubic root of 2278768 is about 131.5931766001.

The spelling of 2278768 in words is "two million, two hundred seventy-eight thousand, seven hundred sixty-eight".