1428983808 has 208 divisors, whose sum is σ = 4482115200. Its totient is φ = 396361728.

The previous prime is 1428983797. The next prime is 1428983849. The reversal of 1428983808 is 8083898241.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3182368 + ... + 3182816.

Almost surely, 2^1428983808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1428983808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2241057600).

1428983808 is an abundant number, since it is smaller than the sum of its proper divisors (3053131392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1428983808 is an equidigital number, since it uses as much as digits as its factorization.

1428983808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520 (or 498 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 51.

The square root of 1428983808 is about 37801.9021743615. The cubic root of 1428983808 is about 1126.3562396911.

The spelling of 1428983808 in words is "one billion, four hundred twenty-eight million, nine hundred eighty-three thousand, eight hundred eight".