428616528 has 40 divisors (see below), whose sum is σ = 1118234976. Its totient is φ = 141456000.

The previous prime is 428616521. The next prime is 428616541. The reversal of 428616528 is 825616824.

It is a self number, because there is not a number n which added to its sum of digits gives 428616528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428616521) 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, 39358 + ... + 49053.

Almost surely, 2^428616528 is an apocalyptic number.

428616528 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

428616528 is an abundant number, since it is smaller than the sum of its proper divisors (689618448).

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

428616528 is a wasteful number, since it uses less digits than its factorization.

428616528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88523 (or 88517 counting only the distinct ones).

The product of its digits is 184320, while the sum is 42.

The square root of 428616528 is about 20703.0560063001. The cubic root of 428616528 is about 753.9738866672.

The spelling of 428616528 in words is "four hundred twenty-eight million, six hundred sixteen thousand, five hundred twenty-eight".