1278956 has 12 divisors (see below), whose sum is σ = 2557968. Its totient is φ = 548112.

The previous prime is 1278911. The next prime is 1278983. The reversal of 1278956 is 6598721.

1278956 is an admirable number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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, 22811 + ... + 22866.

It is an arithmetic number, because the mean of its divisors is an integer number (213164).

2^1278956 is an apocalyptic number.

It is an amenable number.

1278956 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1278956 is a wasteful number, since it uses less digits than its factorization.

1278956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45688 (or 45686 counting only the distinct ones).

The product of its digits is 30240, while the sum is 38.

The square root of 1278956 is about 1130.9093686056. The cubic root of 1278956 is about 108.5471773430.

The spelling of 1278956 in words is "one million, two hundred seventy-eight thousand, nine hundred fifty-six".