1428384807 has 8 divisors (see below), whose sum is σ = 2116125680. Its totient is φ = 952256520.

The previous prime is 1428384779. The next prime is 1428384817. The reversal of 1428384807 is 7084838241.

It is not a de Polignac number, because 1428384807 - 2⁶ = 1428384743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428384817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26451544 + ... + 26451597.

It is an arithmetic number, because the mean of its divisors is an integer number (264515710).

Almost surely, 2^1428384807 is an apocalyptic number.

1428384807 is a deficient number, since it is larger than the sum of its proper divisors (687740873).

1428384807 is an equidigital number, since it uses as much as digits as its factorization.

1428384807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52903150 (or 52903144 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 45.

The square root of 1428384807 is about 37793.9784489540. The cubic root of 1428384807 is about 1126.1988358064.

The spelling of 1428384807 in words is "one billion, four hundred twenty-eight million, three hundred eighty-four thousand, eight hundred seven".