428305528 has 16 divisors (see below), whose sum is σ = 917797680. Its totient is φ = 183559488.

The previous prime is 428305519. The next prime is 428305547. The reversal of 428305528 is 825503824.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3824101 + ... + 3824212.

It is an arithmetic number, because the mean of its divisors is an integer number (57362355).

Almost surely, 2^428305528 is an apocalyptic number.

It is an amenable number.

428305528 is an abundant number, since it is smaller than the sum of its proper divisors (489492152).

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

428305528 is a wasteful number, since it uses less digits than its factorization.

428305528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7648326 (or 7648322 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 37.

The square root of 428305528 is about 20695.5436749074. The cubic root of 428305528 is about 753.7914838278.

The spelling of 428305528 in words is "four hundred twenty-eight million, three hundred five thousand, five hundred twenty-eight".