1279428382 has 8 divisors (see below), whose sum is σ = 1947786696. Its totient is φ = 630166152.

The previous prime is 1279428331. The next prime is 1279428401. The reversal of 1279428382 is 2838249721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4773853 + ... + 4774120.

It is an arithmetic number, because the mean of its divisors is an integer number (243473337).

Almost surely, 2^1279428382 is an apocalyptic number.

1279428382 is a deficient number, since it is larger than the sum of its proper divisors (668358314).

1279428382 is an equidigital number, since it uses as much as digits as its factorization.

1279428382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9548042.

The product of its digits is 387072, while the sum is 46.

The square root of 1279428382 is about 35769.0981435093. The cubic root of 1279428382 is about 1085.6053965341.

The spelling of 1279428382 in words is "one billion, two hundred seventy-nine million, four hundred twenty-eight thousand, three hundred eighty-two".