1279936 has 28 divisors (see below), whose sum is σ = 2903728. Its totient is φ = 548352.

The previous prime is 1279931. The next prime is 1279937. The reversal of 1279936 is 6399721.

It is a tau number, because it is divible by the number of its divisors (28).

It is a junction number, because it is equal to n+sod(n) for n = 1279895 and 1279904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1279931) 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, 981 + ... + 1876.

2^1279936 is an apocalyptic number.

1279936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1279936 is an abundant number, since it is smaller than the sum of its proper divisors (1623792).

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

1279936 is an equidigital number, since it uses as much as digits as its factorization.

1279936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2876 (or 2866 counting only the distinct ones).

The product of its digits is 20412, while the sum is 37.

The square root of 1279936 is about 1131.3425652737. The cubic root of 1279936 is about 108.5748950219.

The spelling of 1279936 in words is "one million, two hundred seventy-nine thousand, nine hundred thirty-six".