428973528 has 32 divisors (see below), whose sum is σ = 1072946160. Its totient is φ = 142922880.

The previous prime is 428973521. The next prime is 428973553. The reversal of 428973528 is 825379824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428973521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85818 + ... + 90678.

Almost surely, 2^428973528 is an apocalyptic number.

It is an amenable number.

428973528 is an abundant number, since it is smaller than the sum of its proper divisors (643972632).

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

428973528 is a wasteful number, since it uses less digits than its factorization.

428973528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8547 (or 8543 counting only the distinct ones).

The product of its digits is 967680, while the sum is 48.

The square root of 428973528 is about 20711.6761272476. The cubic root of 428973528 is about 754.1831599634.

The spelling of 428973528 in words is "four hundred twenty-eight million, nine hundred seventy-three thousand, five hundred twenty-eight".