1279072 has 12 divisors (see below), whose sum is σ = 2518236. Its totient is φ = 639520.

The previous prime is 1279043. The next prime is 1279081. The reversal of 1279072 is 2709721.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1279072.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 19954 + ... + 20017.

It is an arithmetic number, because the mean of its divisors is an integer number (209853).

2^1279072 is an apocalyptic number.

It is an amenable number.

1279072 is a deficient number, since it is larger than the sum of its proper divisors (1239164).

1279072 is an equidigital number, since it uses as much as digits as its factorization.

1279072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39981 (or 39973 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 1279072 is about 1130.9606536038. The cubic root of 1279072 is about 108.5504589498.

The spelling of 1279072 in words is "one million, two hundred seventy-nine thousand, seventy-two".