1428688803 has 16 divisors (see below), whose sum is σ = 1955923200. Its totient is φ = 927109344.

The previous prime is 1428688801. The next prime is 1428688817. The reversal of 1428688803 is 3088868241.

It is a Cunningham number, because it is equal to 37798²-1.

It is not a de Polignac number, because 1428688803 - 2¹ = 1428688801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1428688801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18898 + ... + 56696.

It is an arithmetic number, because the mean of its divisors is an integer number (122245200).

Almost surely, 2^1428688803 is an apocalyptic number.

1428688803 is a deficient number, since it is larger than the sum of its proper divisors (527234397).

1428688803 is a wasteful number, since it uses less digits than its factorization.

1428688803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38138.

The product of its (nonzero) digits is 589824, while the sum is 48.

The square root of 1428688803 is about 37797.9999867718. Note that the first 4 decimals coincide. The cubic root of 1428688803 is about 1126.2787245625.

The spelling of 1428688803 in words is "one billion, four hundred twenty-eight million, six hundred eighty-eight thousand, eight hundred three".