1278298 has 32 divisors (see below), whose sum is σ = 2395008. Its totient is φ = 499200.

The previous prime is 1278289. The next prime is 1278323. The reversal of 1278298 is 8928721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9693 + ... + 9823.

It is an arithmetic number, because the mean of its divisors is an integer number (74844).

2^1278298 is an apocalyptic number.

1278298 is a deficient number, since it is larger than the sum of its proper divisors (1116710).

1278298 is a wasteful number, since it uses less digits than its factorization.

1278298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198.

The product of its digits is 16128, while the sum is 37.

The square root of 1278298 is about 1130.6184148509. The cubic root of 1278298 is about 108.5285589556.

It can be divided in two parts, 12782 and 98, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 1278298 in words is "one million, two hundred seventy-eight thousand, two hundred ninety-eight".