1278196 has 12 divisors (see below), whose sum is σ = 2368548. Its totient is φ = 601472.

The previous prime is 1278191. The next prime is 1278197. The reversal of 1278196 is 6918721.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1028196 + 250000 = 1014^2 + 500^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1278191) 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, 9331 + ... + 9466.

It is an arithmetic number, because the mean of its divisors is an integer number (197379).

2^1278196 is an apocalyptic number.

It is an amenable number.

1278196 is a deficient number, since it is larger than the sum of its proper divisors (1090352).

1278196 is a wasteful number, since it uses less digits than its factorization.

1278196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18818 (or 18816 counting only the distinct ones).

The product of its digits is 6048, while the sum is 34.

The square root of 1278196 is about 1130.5733058940. The cubic root of 1278196 is about 108.5256722506.

The spelling of 1278196 in words is "one million, two hundred seventy-eight thousand, one hundred ninety-six".