428714028 has 18 divisors (see below), whose sum is σ = 1083693884. Its totient is φ = 142904664.

The previous prime is 428714021. The next prime is 428714029. The reversal of 428714028 is 820417824.

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 11908723 = 428714028 / (4 + 2 + 8 + 7 + 1 + 4 + 0 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 428713983 and 428714001.

It is not an unprimeable number, because it can be changed into a prime (428714021) 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 5 ways as a sum of consecutive naturals, for example, 5954326 + ... + 5954397.

Almost surely, 2^428714028 is an apocalyptic number.

It is an amenable number.

428714028 is an abundant number, since it is smaller than the sum of its proper divisors (654979856).

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

428714028 is a wasteful number, since it uses less digits than its factorization.

428714028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11908733 (or 11908728 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 36.

The square root of 428714028 is about 20705.4105972328. The cubic root of 428714028 is about 754.0310526698.

The spelling of 428714028 in words is "four hundred twenty-eight million, seven hundred fourteen thousand, twenty-eight".