428856552 has 64 divisors (see below), whose sum is σ = 1261353600. Its totient is φ = 134542080.

The previous prime is 428856539. The next prime is 428856577. The reversal of 428856552 is 255658824.

It is a happy number.

428856552 is a `hidden beast` number, since 4 + 2 + 88 + 565 + 5 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 428856498 and 428856507.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54724 + ... + 62067.

It is an arithmetic number, because the mean of its divisors is an integer number (19708650).

Almost surely, 2^428856552 is an apocalyptic number.

It is an amenable number.

428856552 is an abundant number, since it is smaller than the sum of its proper divisors (832497048).

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

428856552 is a wasteful number, since it uses less digits than its factorization.

428856552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116823 (or 116813 counting only the distinct ones).

The product of its digits is 768000, while the sum is 45.

The square root of 428856552 is about 20708.8520203318. The cubic root of 428856552 is about 754.1146014598.

The spelling of 428856552 in words is "four hundred twenty-eight million, eight hundred fifty-six thousand, five hundred fifty-two".