1428875716 has 6 divisors (see below), whose sum is σ = 2500532510. Its totient is φ = 714437856.

The previous prime is 1428875689. The next prime is 1428875719. The reversal of 1428875716 is 6175788241.

It can be written as a sum of positive squares in only one way, i.e., 834978816 + 593896900 = 28896^2 + 24370^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1428875716.

It is not an unprimeable number, because it can be changed into a prime (1428875719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 178609461 + ... + 178609468.

Almost surely, 2^1428875716 is an apocalyptic number.

It is an amenable number.

1428875716 is a deficient number, since it is larger than the sum of its proper divisors (1071656794).

1428875716 is a wasteful number, since it uses less digits than its factorization.

1428875716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357218933 (or 357218931 counting only the distinct ones).

The product of its digits is 752640, while the sum is 49.

The square root of 1428875716 is about 37800.4724309102. The cubic root of 1428875716 is about 1126.3278388168.

The spelling of 1428875716 in words is "one billion, four hundred twenty-eight million, eight hundred seventy-five thousand, seven hundred sixteen".