428961996 has 18 divisors (see below), whose sum is σ = 1084320692. Its totient is φ = 142987320.

The previous prime is 428961959. The next prime is 428962007. The reversal of 428961996 is 699169824.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5957770 + ... + 5957841.

Almost surely, 2^428961996 is an apocalyptic number.

It is an amenable number.

428961996 is an abundant number, since it is smaller than the sum of its proper divisors (655358696).

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

428961996 is a wasteful number, since it uses less digits than its factorization.

428961996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11915621 (or 11915616 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 54.

The square root of 428961996 is about 20711.3977316839. The cubic root of 428961996 is about 754.1764017234.

The spelling of 428961996 in words is "four hundred twenty-eight million, nine hundred sixty-one thousand, nine hundred ninety-six".