428116784 has 10 divisors (see below), whose sum is σ = 829476300. Its totient is φ = 214058384.

The previous prime is 428116781. The next prime is 428116807. The reversal of 428116784 is 487611824.

It is not an unprimeable number, because it can be changed into a prime (428116781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13378634 + ... + 13378665.

It is an arithmetic number, because the mean of its divisors is an integer number (82947630).

Almost surely, 2^428116784 is an apocalyptic number.

It is an amenable number.

428116784 is a deficient number, since it is larger than the sum of its proper divisors (401359516).

428116784 is a wasteful number, since it uses less digits than its factorization.

428116784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26757307 (or 26757301 counting only the distinct ones).

The product of its digits is 86016, while the sum is 41.

The square root of 428116784 is about 20690.9831569213. The cubic root of 428116784 is about 753.6807416010.

The spelling of 428116784 in words is "four hundred twenty-eight million, one hundred sixteen thousand, seven hundred eighty-four".