428028748 has 24 divisors (see below), whose sum is σ = 885578400. Its totient is φ = 177115008.

The previous prime is 428028743. The next prime is 428028779. The reversal of 428028748 is 847820824.

It is a super-2 number, since 2×428028748² = 366417218228895008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (428028743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262753 + ... + 264376.

It is an arithmetic number, because the mean of its divisors is an integer number (36899100).

Almost surely, 2^428028748 is an apocalyptic number.

It is an amenable number.

428028748 is an abundant number, since it is smaller than the sum of its proper divisors (457549652).

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

428028748 is a wasteful number, since it uses less digits than its factorization.

428028748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527169 (or 527167 counting only the distinct ones).

The product of its (nonzero) digits is 229376, while the sum is 43.

The square root of 428028748 is about 20688.8556474253. The cubic root of 428028748 is about 753.6290768927.

The spelling of 428028748 in words is "four hundred twenty-eight million, twenty-eight thousand, seven hundred forty-eight".