1268278 has 8 divisors (see below), whose sum is σ = 2075400. Its totient is φ = 576480.

The previous prime is 1268261. The next prime is 1268279. The reversal of 1268278 is 8728621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1268279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28803 + ... + 28846.

It is an arithmetic number, because the mean of its divisors is an integer number (259425).

2^1268278 is an apocalyptic number.

1268278 is a deficient number, since it is larger than the sum of its proper divisors (807122).

1268278 is a wasteful number, since it uses less digits than its factorization.

1268278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57662.

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

The square root of 1268278 is about 1126.1784938454. The cubic root of 1268278 is about 108.2442460233.

The spelling of 1268278 in words is "one million, two hundred sixty-eight thousand, two hundred seventy-eight".