1278996 has 24 divisors (see below), whose sum is σ = 3042144. Its totient is φ = 418080.

The previous prime is 1278983. The next prime is 1278997. The reversal of 1278996 is 6998721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1278997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370 + ... + 1641.

It is an arithmetic number, because the mean of its divisors is an integer number (126756).

2^1278996 is an apocalyptic number.

It is an amenable number.

1278996 is an abundant number, since it is smaller than the sum of its proper divisors (1763148).

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

1278996 is a wasteful number, since it uses less digits than its factorization.

1278996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2071 (or 2069 counting only the distinct ones).

The product of its digits is 54432, while the sum is 42.

The square root of 1278996 is about 1130.9270533505. The cubic root of 1278996 is about 108.5483089540.

The spelling of 1278996 in words is "one million, two hundred seventy-eight thousand, nine hundred ninety-six".