1428789379 has 8 divisors (see below), whose sum is σ = 1507569680. Its totient is φ = 1350367200.

The previous prime is 1428789343. The next prime is 1428789389. The reversal of 1428789379 is 9739878241.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1428789379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1428789389) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 81312 + ... + 97309.

It is an arithmetic number, because the mean of its divisors is an integer number (188446210).

Almost surely, 2^1428789379 is an apocalyptic number.

1428789379 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1428789379 is a deficient number, since it is larger than the sum of its proper divisors (78780301).

1428789379 is a wasteful number, since it uses less digits than its factorization.

1428789379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179061.

The product of its digits is 6096384, while the sum is 58.

The square root of 1428789379 is about 37799.3304041222. The cubic root of 1428789379 is about 1126.3051529797.

The spelling of 1428789379 in words is "one billion, four hundred twenty-eight million, seven hundred eighty-nine thousand, three hundred seventy-nine".