428524616 has 16 divisors (see below), whose sum is σ = 865290300. Its totient is φ = 197780544.

The previous prime is 428524609. The next prime is 428524631. The reversal of 428524616 is 616425824.

It can be written as a sum of positive squares in 2 ways, for example, as 421480900 + 7043716 = 20530^2 + 2654^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 428524616.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 2060111 + ... + 2060318.

Almost surely, 2^428524616 is an apocalyptic number.

It is an amenable number.

428524616 is an abundant number, since it is smaller than the sum of its proper divisors (436765684).

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

428524616 is a wasteful number, since it uses less digits than its factorization.

428524616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4120448 (or 4120444 counting only the distinct ones).

The product of its digits is 92160, while the sum is 38.

The square root of 428524616 is about 20700.8361183794. The cubic root of 428524616 is about 753.9199890708.

The spelling of 428524616 in words is "four hundred twenty-eight million, five hundred twenty-four thousand, six hundred sixteen".