428147712 has 66 divisors (see below), whose sum is σ = 1236293838. Its totient is φ = 142712832.

The previous prime is 428147711. The next prime is 428147743. The reversal of 428147712 is 217741824.

It can be written as a sum of positive squares in only one way, i.e., 410305536 + 17842176 = 20256^2 + 4224^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (428147711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14013 + ... + 32444.

Almost surely, 2^428147712 is an apocalyptic number.

It is an amenable number.

428147712 is an abundant number, since it is smaller than the sum of its proper divisors (808146126).

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

428147712 is a wasteful number, since it uses less digits than its factorization.

428147712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46483 (or 46462 counting only the distinct ones).

The product of its digits is 25088, while the sum is 36.

The square root of 428147712 is about 20691.7305221192. The cubic root of 428147712 is about 753.6988902912.

The spelling of 428147712 in words is "four hundred twenty-eight million, one hundred forty-seven thousand, seven hundred twelve".