1428863308 has 24 divisors (see below), whose sum is σ = 2634336320. Its totient is φ = 676259280.

The previous prime is 1428863291. The next prime is 1428863333. The reversal of 1428863308 is 8033688241.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90835 + ... + 105397.

Almost surely, 2^1428863308 is an apocalyptic number.

It is an amenable number.

1428863308 is a deficient number, since it is larger than the sum of its proper divisors (1205473012).

1428863308 is a wasteful number, since it uses less digits than its factorization.

1428863308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15877 (or 15875 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 1428863308 is about 37800.3083056210. The cubic root of 1428863308 is about 1126.3245785575.

The spelling of 1428863308 in words is "one billion, four hundred twenty-eight million, eight hundred sixty-three thousand, three hundred eight".