428526028 has 24 divisors (see below), whose sum is σ = 857491712. Its totient is φ = 183559824.

The previous prime is 428525969. The next prime is 428526031. The reversal of 428526028 is 820625824.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98875 + ... + 103117.

Almost surely, 2^428526028 is an apocalyptic number.

It is an amenable number.

428526028 is an abundant number, since it is smaller than the sum of its proper divisors (428965684).

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

428526028 is a wasteful number, since it uses less digits than its factorization.

428526028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7861 (or 7859 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 428526028 is about 20700.8702232539. The cubic root of 428526028 is about 753.9208171320.

The spelling of 428526028 in words is "four hundred twenty-eight million, five hundred twenty-six thousand, twenty-eight".